Pregnancy

Pregnancy

Traditionally, pregnancy is divided into trimesters. Each trimester brings its own unique experiences and challenges.

​First Trimester: The Quiet Start (Weeks 1-16)

​ During these weeks, your body is quietly working on a miracle: laying the foundation for your baby's organs. It's hard work, and it can leave you feeling exhausted and nauseous. Many moms keep this period a secret, but we encourage you to seek support. You don't have to go through this intense time all by yourself.

Second Trimester: Your Clear-Headed Period (Weeks 17-28)

The nausea fades and your energy returns. It's like the sun is finally breaking through. Many moms call this their favorite trimester—and we totally get why!

Around week 16, you'll feel something magical: your baby moving. It's your own secret conversation, an intimate moment that will fill your day with joy. The 20-week ultrasound is the next milestone. Seeing your little one on the screen... it's a moment that will fill your heart with love and wonder.

Now that your energy is back, it's the perfect time for a 'babymoon'. Whether it's a weekend away or just some quality time at home, enjoy it. It's also a great time to think about your birth wishes. We're ready to discuss your thoughts and questions.

Third Trimester: Slowing Down (Weeks 29-42)

Your pace is slowing down now, and that's exactly how it should be. You're carrying extra weight—a sign of your dedicated care. Every step takes more effort, but think of it as practice in mindfulness. You're learning to slow down and listen to your body.

After week 34, you will understand why we encourage taking leave early. Your world gets smaller, and that is a good thing. It helps you turn inward, rest, and focus on meeting your baby.

Fourth Trimester: The Gentle Landing (Days 1-12 weeks postpartum)

The fourth trimester is your gentle landing into motherhood. These weeks are all about bonding, recovery, and reflection. You process your birth experience, whether it went as planned or not. And you get to know your baby - every smile, every sigh.

Your Body During Pregnancy

During pregnancy, almost every organ in your body is affected. This is nothing to worry about; rather, it's a sign that your body is working hard to provide you and your baby with oxygen and nutrients. It's a time full of changes.

1. Hormones in Action: Your hormones, like progesterone and estrogen, are more active than usual. This can cause symptoms like nausea, fatigue, and skin changes. These effects are normal and help your body prepare for motherhood.

2. Healthy Growth: You gain weight during pregnancy. This is no surprise—it's healthy and necessary for your baby's development. At our practice, we help you find the right balance so you don't gain too much or too little.

3. Improved Circulation: Your body produces more blood to give your baby what they need. This can lead to changes like varicose veins or a different blood pressure. It's a sign that your body is adapting to its new job.

4. Skin Changes: Your skin may show pigment changes and stretch marks. This is common during pregnancy and experienced by many moms. They are normal signs of your body expanding.

5. Managing Energy: Your energy levels can vary. Sometimes you feel tired and have less energy for work or exercise. This is your body saying, "I need rest." Your nutritional needs may also change to provide you both with the right nutrients.

Our meetings during your pregnancy

4+
weeks
Pregnant!

Congratulations, you're pregnant! Get in touch with us to schedule your first appointment and ultrasound. Got questions before your first visit? Our midwives are more than happy to answer them for you beforehand.

Have you started taking folic acid and vitamin D yet? If not, start now.

First ultrasound

If you're curious about what's going on in your belly and can't wait for the dating scan, you can come in for an ultrasound at 8 weeks.

This ultrasound is a gift from us, provided there's no medical reason requiring one. During the 8-week ultrasound, we take a look at the baby's heart—you can actually see it beating clearly! We'll also check if you're having one baby or multiples. Usually, we can do this ultrasound over your belly, though sometimes we might need to do a vaginal ultrasound. While we can do it as early as 6 weeks, it's not quite as clear or reliable then, which is why we prefer to wait until week 8 for your first ultrasound.

We also offer a special, free heartbeat consultation. Are you feeling worried about how the baby is doing? Just drop by for a quick ultrasound to see the baby's heartbeat!

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7 - 8
weeks
8
weeks
First appointment with the midwife

Your first visit with the midwife! The midwife will tell you all about our practice, how to reach us, and how we work.

This first appointment takes about an hour. We'll go over the questionnaire you filled out beforehand, explain the tests we can do during pregnancy, discuss your check-ups, and share tips for a healthy pregnancy. You'll also have plenty of time to ask the midwife any questions you might have.

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The dating ultrasound

During this ultrasound, the baby is measured from crown to rump. This measurement helps us figure out your exact due date!

The dating ultrasound is done between weeks 10 and 11. During this scan, you'll see just how much the baby has grown over the past couple of weeks! You'll suddenly be able to see the baby's little profile, arms, and legs.

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10
weeks
11
weeks
Information about the NIPT, 13-week, and 20-week ultrasound

Want to know more about the tests available to check on your baby during pregnancy? We're happy to explain everything in detail.

During your intake, we'll ask if you'd like information about optional tests for your unborn baby, which is known as prenatal screening. This covers the NIPT as well as the 13-week and 20-week ultrasounds. The NIPT is a blood test that checks for conditions like Down, Edwards, or Patau syndrome, and you can take it starting from 11 weeks of pregnancy.

The 13-week ultrasound is an early scan during pregnancy to check if any abnormalities are visible in the baby. This check is repeated at the 20-week ultrasound. By then the baby is bigger, making it easier to assess the body structures.

You don't have to do these tests if you don't want to.

Want to read more about prenatal screening? Check out our knowledge base on prenatal screening.

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13-week ultrasound

This medical ultrasound checks whether your baby's development is right on track.

The 13-week ultrasound can be performed between 12+3 and 14+3 weeks. While the 20-week ultrasound provides a more detailed and reliable assessment, any major developmental issues might already be visible at 13 weeks.

The 13-week ultrasound is currently part of a scientific study. Read more about it on the prenatal screening page.

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13
weeks
16
weeks
Listening to the heartbeat

During this check-up, you'll get to hear your baby's heartbeat!

The midwife will check your blood pressure and feel your tummy to see how the baby is growing. She can also let you hear the baby's heartbeat. It's also a good idea to sign up for maternity care (kraamzorg) before week 16. You can also start arranging childcare and, if you aren't married, make an appointment at the municipality to arrange the acknowledgment of the unborn child.

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Gender reveal ultrasound

Curious to know if you're having a boy or a girl? From 16 weeks onwards, we can take a peek during an ultrasound!

This ultrasound is self-pay and, alongside finding out your baby's gender, gives you some lovely photos of your little one.

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16
weeks
19
weeks
20-week ultrasound

The 20-week ultrasound is scheduled around week 19. This is a medical ultrasound meant to spot any potential abnormalities in the baby, so it can be quite an exciting moment! 

Our sonographer will examine your baby thoroughly and share the results with you right away. Read more about what this ultrasound involves on our prenatal screening page.

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Check-up with the midwife

After the 20-week ultrasound, you'll have an appointment with your midwife to go over the results together.

Just like every check-up, we'll check your blood pressure and listen to the baby's heartbeat. The midwife will also share information about the whooping cough vaccination and breastfeeding.  

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20
weeks
24
weeks
Pregnancy class

Everyone prepares for childbirth and the arrival of the baby in their own way. Attending a session about labor or breastfeeding can really help.

During this check-up, the midwife will tell you about your options and help you figure out what suits you best. Fancy joining group fitness classes, or prefer a small course to take with your partner? There are plenty of options.

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Feeling the baby move!

Most women feel their baby move for the first time between weeks 20 and 24. Some days you'll feel them really clearly, and other days a bit less. By week 27, your baby is big and strong enough to let you know they're there every single day!

During your check-up, the midwife might be able to tell how the baby is positioned just by feeling your tummy! This can still change from day to day since the baby has plenty of room to move around right now. Feeling your tummy also helps us check if your baby is growing nicely. If we have any doubts about that, we'll schedule a growth ultrasound.

Suddenly feeling your baby move a lot less than usual after week 27? Get in touch with the midwife right away.

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27
weeks
30
weeks
All about childbirth

You'll be visiting the midwife more often now. This is important so we can keep a close eye on your blood pressure and the baby's growth.

You'll also find yourself thinking more and more about labor and the period after birth. We're happy to answer all your questions, give you info about childbirth, or help you put together a birth plan.  

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Growth ultrasound (if needed)

Not everyone gets a growth ultrasound during pregnancy. There are a few specific reasons when this growth ultrasound is allowed; the main reason is if the midwife has doubts about the baby's growth.

During a growth ultrasound, we measure the baby's head, belly, and upper leg to estimate their current weight. If your midwife feels your belly is growing normally during your check-up, this is a very reliable way to estimate the weight without needing an extra ultrasound.

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30
weeks
33
weeks
Birth plan

The big day is getting closer! Maybe you still have a few weeks of work left before your maternity leave starts. Some women already have a birth plan ready, while others are still figuring out what they want.

During your 33-week check-up, we take plenty of time to talk you through everything about the delivery. Have you written a birth plan, or do you need some help with that? Feel free to bring it along to your appointment.

Not quite there yet, but eager to put a birth plan together? We can chat about it during your next visit.

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How the baby is positioned

By week 35, most babies are lying head down. We'll do a quick ultrasound to check and be completely sure.

During this check-up, your midwife will check if your baby is growing nicely and let you know how your little one is positioned.

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35
weeks
37
weeks
From now on, labor can begin at any time

From week 37, your little one is ready to be born. However, most babies like to take their time.

Your midwife will have already talked to you about when to give us a call. Have your contractions started, or did your water break first? At home, your preparations for the baby's arrival will almost be finished, and your hospital bag will be packed and ready to go.

You'll now come in to see us every week. We'll keep a close eye on your blood pressure and how the baby is growing.

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The last bit

Many moms find their belly is starting to feel quite heavy around now. The countdown has officially begun!

This check-up is also meant to check your blood pressure and the baby's growth. Do you have any questions to help you prepare for labor or your postpartum period?

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38
weeks
39
weeks
Check-up with the midwife

The closer you get to 40 weeks, the more likely it is that labor will start.

Most babies actually arrive a few days after their due date rather than before it.

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Your due date

Only about 4% of babies are born right on their due date. The rest arrive a bit earlier or later. Still, it's a day you look forward to so much!

You might already be feeling some Braxton Hicks contractions or lose your mucus plug. Labor can give you a few different warning signs, but you can usually be pretty sure things are getting started when contractions happen every 5 minutes.

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40
weeks
41
weeks
1 week later

85% of women have given birth by week 41. That means plenty of babies are still cozy in the womb at this stage.

As long as mom and baby are doing well, there's no need to intervene. However, we do offer extra checks in the final days of your pregnancy to keep a closer eye on both of you. For instance, we can offer an ultrasound to check the amniotic fluid and monitor mom every other day. If you'd like, we can also try to sweep your membranes.

Don't want to wait any longer for labor to start on its own? Starting at week 41, you can choose to have your labor induced. This is done in close collaboration with the gynecologist.

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The delivery

Give your midwife a call once your contractions have started and you're ready for her support. We are here for you both and will keep a close eye on how mom and baby are doing.

We'll be close by during the entire delivery from the moment you'd like us there, and we'll come with you to the hospital. If you end up needing care from the gynecologist, we'll make sure there's a smooth and clear handover, including a discussion of your birth plan.

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0
days
2
days
Your postpartum period has started

The first few days at home with your little one! It takes some getting used to. You'll likely have questions, worries, and thoughts about your physical recovery. Your midwife will drop by your home to talk everything through.

Right after the delivery, you won't get much chance to truly rest. Your baby is also getting used to a brand-new world that's cold, bright, noisy, and where feeding doesn't happen automatically anymore. Thankfully, maternity care is there to help you look after your baby. They'll teach you how to check the baby's temperature, feed them, and change diapers, while also keeping an eye on how you're recovering. Your midwife will gladly go over any questions you have, share tips for getting a bit more sleep, and help out with breastfeeding. You certainly aren't in this alone during these first few days.

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The heel prick test

We perform the heel prick test right at your home.

The heel prick is a quick blood test from the baby's foot. Want to read more about it? Check out our knowledge base. Around this time, the baby blues might also hit. Hormonal changes, your love for your little one, your new family life, and your physical recovery—a lot happens during these days. It's totally okay to let the tears flow. Getting enough rest and having someone to talk to will really help.

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4
days
6
days
The baby is growing

In the first few days after birth, your baby will lose a bit of weight, but by the end of the first week, most babies start growing again. Within 2 weeks of birth, little ones are usually back above their birth weight.

This is because breastfeeding takes a little time to get going. Feeding the baby every 2-3 hours helps your milk production get started. It starts out as just a tiny bit, but within a few days your milk will come in, your breasts will feel fuller, and the milk will start flowing. This is also when the baby starts gaining weight again.

Going to formula feed? Even then, it's important to start with small amounts of milk—the first bottles won't contain more than 10cc. A baby's tummy is tiny and needs to grow gradually. Your maternity nurse will be happy to give you advice on this too.

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The final maternity nurse visit

The baby is a week old. The midwife is coming by for the last time.

She will talk about what you can expect in the coming weeks and when you should call us. Your care will then be handed over to your GP and the child health clinic.

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8
days
6
weeks
The postnatal check-up

This is your final appointment at the practice.

We'd love to see you one last time to hear how you're all doing. We'll check your physical recovery and hear all about your experience with our care.

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Frequently Asked Questions About " ultrasound" and "Pretecho"

How much does a fun ultrasound cost at ZWANGER & Zo?

How do I make an appointment for a " ultrasound"?

At what week can you tell the baby's gender?

What is the difference between a 2D, 3D, and 4Dultrasound?

When is the best time to have a 3D/4Dultrasound?

Can I get a fun ultrasound if I'm not a patient at your clinic?

Is a fun ultrasound covered by health insurance?

Ultrasounds during your pregnancy

6+
weeks
Bleeding?

Sometimes you might experience a little or a lot of vaginal bleeding early in the pregnancy. Sometimes this is harmless, but other times it can be a sign that things aren't going well with the pregnancy.

In consultation with your midwife, you can have an early ultrasound . This ultrasound is performed vaginally because the embryo is small and not yet visible through the abdomen. This ultrasound can tell you whether the embryo is inside the uterus and not outside it. It also shows whether the baby’s heart is beating. If you have the scan before 6 weeks, you won’t be able to see the baby’s heart beating yet.

Want to know more about bleeding during pregnancy? Read more in our knowledge base.

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Seeing your baby for the first time

If you're registered with us, you'll receive the " ultrasound " as a free gift at 8 weeks.

The baby doesn't quite look like a tiny human yet and is still curled up. With this ultrasound, you can see the baby's heart beating, we'll measure the baby, and we can check if there's 1 or 2 little ones. We use these measurements to estimate your due date. You'll get your first photo of the baby to take home after this scan.

Your uterus may still be located deep within the pelvis. In that case, it may be necessary to perform the ultrasound vaginally.

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8
weeks
8-12
weeks
Heartbeat consultation

Wondering if your baby is growing nicely? That's what our heartbeat consultation hours are for.  

Sometimes you have a reason to worry. Or maybe what's happening in your belly feels so special that you just want a quick peek at how much the baby has grown. We have the heartbeat consultation hour just for you. You can book an appointment for a quick ultrasound where we measure the baby one more time and let you hear and see the heartbeat.

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The dating ultrasound

Between weeks 10 and 11, we'll do your dating ultrasound. By then, the baby is bigger than 3 cm.

The baby is much easier to recognize now; you can see the profile of the face, and the arms and legs are clearly visible. We can now clearly see the baby's head and bottom, which lets us measure the baby reliably. Based on this measurement, your due date will be set. Along with your due date, you'll of course get some lovely photos of the baby to take home.

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10
weeks
13
weeks
13-week ultrasound

This ultrasound is part of prenatal screening. You get this ultrasound if you choose to have it, after having an informational chat about it. The baby is about 7 cm long, and this is the last time the baby is measured from head to bottom.

With this ultrasound , we check early in pregnancy to see if the baby is developing properly. This ultrasound assesses whether the baby’s development is progressing well. You can only undergo this ultrasound if you’re participating in the scientific study on the 13-week ultrasound. Read more here about the ultrasound and the study.

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Gender reveal

Curious to know if you're having a boy or a girl? We can usually tell at 16 weeks.

The sex determination is an optional ultrasound and this means you have to pay for it yourself. You will receive beautiful pictures of the examination!

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16
weeks
19
weeks
20-week ultrasound

The 20-week ultrasound is also part of prenatal screening. The baby weighs about 250 to 300 grams. The ultrasound is done between weeks 19 and 20.

This ultrasound is only done if you've let us know you want it. The 20-week ultrasound checks if all the baby's body parts look normal. Not everything can be fully checked, but the baby is bigger than at 13 weeks, which makes this ultrasound more reliable. The baby will be measured during the scan, and you'll start to notice that every baby follows their own growth curve, so they might be bigger or smaller than average. Read more about the 20-week ultrasound here.

The sonographer can tell you the baby's gender if you'd like to know. It's clearly visible at 20 weeks.

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3D/4D Ultrasound

Want to admire your baby in even more detail? Between 27 and 30 weeks you can visit us for a gorgeous 3D/4D-ultrasound! This lets you see live as your baby moves and plays in your belly.

While a 2D ultrasound provides a side view, a 3D ultrasound gives you an image where you can see features like the face. We can also turn this into a video, which makes it 4D. This ultrasound is by request and is not covered by insurance.

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27
weeks
Growth ultrasound

During the second half of your pregnancy, your midwife may order a growth ultrasound if she has any concerns about the baby's growth. Sometimes a growth ultrasound is done just to be safe, usually around 30 weeks.

During a growth ultrasound, we measure the circumference of the head and belly, as well as the length of the upper leg. These measurements are looked at individually and also put into a formula. This formula gives an estimated weight of the baby at that moment. The ultrasound also checks the baby's position, the amount of amniotic fluid, and where the placenta is located.

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30
weeks
32
weeks
Placenta position

This ultrasound is only done if a low-lying placenta was seen during the 20-week ultrasound. Was that not the case? Then this ultrasound won't be done.

At 20 weeks, the placenta is relatively large compared to the still small space in the womb. Sometimes, the placenta might cover a small part of the cervix. At 20 weeks this is completely harmless, but the placenta cannot stay there when you give birth. As the womb grows, the placenta almost always moves up along with it. At 32 weeks, we check with a vaginal ultrasound to see if the placenta has moved up enough and is no longer covering the cervix. This leaves the way clear for the baby during birth.

The reverse isn't true: if the placenta isn't over the cervix at 20 weeks, it won't suddenly end up over the cervix later in pregnancy. Because of this, most women don't need to have this ultrasound done.

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Locational ultrasound

Not everyone needs a growth ultrasound after the 20-week check. To make sure the baby's head is pointing down, we do a quick ultrasound to check this.

This happens during your regular check-up. If the baby is still in a breech position during this check, your midwife will chat with you about your options for trying to turn the baby. A gynecologist can try this, or sometimes things like acupuncture can help too.

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35
weeks
41
weeks
Amniotic fluid check

Haven't given birth yet? Then we'll measure the baby's growth one more time during this ultrasound and check if there's enough amniotic fluid around the baby.

The amount of amniotic fluid decreases slightly towards the end of pregnancy. Your baby needs this fluid to move around. It also gives us a good sign that the placenta is still working as it should.

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Listening to Your Body

We encourage you to listen closely to your body. Feeling tired? Take extra rest—your body is doing amazing work! Choose healthy, nutritious meals that support you and your baby. And keep moving in a way that feels comfortable, whether that's a walk or pregnancy yoga.

At our practice, we see pregnancy as more than just a physical experience. It's a time when your body, mind, and emotions work together. We offer not just medical care, but emotional and psychological support too. Whether you have questions about your changing body or just need someone to listen, we're here for you.

Your body adapts in wondrous ways to support new life. It's important to accept these changes, listen to them, and take care of yourself. With our personal guidance, we aim to make your pregnancy not just healthy, but a truly positive experience.

We're here to support you through every change, every question, and every milestone. Together, we'll make sure you experience this special time with confidence and joy. You're doing great, mama!

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“Having the chance to experience the simplicity of nature with the help of the midwives was a life changing experience. ”
“This is the place to be for warm and very professional support during this special time in your life!”
"The absolute best practice in Rotterdam and surroundings! This is the place to be for friendly and highly professional care."
“They are all so skilled, caring, and understanding with a healthy dose of humor!”

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