Week 9 of Pregnancy
At Week 9, your baby is the size of a grape! Their arms and legs are growing longer, and their face is taking shape with eyelids, nostrils, and even little earlobes. It’s also the time when the major organs are developing, setting the stage for your baby’s continued growth!
Baby’s Size
Your baby is about the size of a grape.
Baby Development at 9 weeks
Teeth are budding
Ten tiny tooth buds are developing within each band of gums. (They'll transform into the 20 "baby teeth" that eventually fall out during childhood.) Next week, the teeth start to harden and connect to your baby's jaw. You'll see these pearly whites start to poke out when your baby gets a first tooth, usually between 4 and 7 months old. Some babies are born with a tooth, but this is rare.
The placenta takes over
Your body is not only growing a new baby, but also a new organ, the placenta, which is attached to your uterus and connected to your baby through the umbilical cord. Your placenta is developed enough now to take over most of the critical job of producing hormones that help your baby grow and develop. By the end of your pregnancy, it will be about 9 inches in diameter and an inch thick, not unlike a large pancake.
Your baby's heart
The four chambers of your baby's heart have formed. If you expect to hear the familiar, steady "lub-dub" sound of a human heartbeat at a prenatal appointment, you're in for a surprise. Many people describe the sound of their baby's heartbeat as similar to the thunder of galloping horses. That's because your baby's heart beats about twice as fast as yours does.
Pregnancy symptoms during Week 9
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Having any food cravings yet? The extreme hormonal changes you go through during pregnancy can have a huge impact on taste and smell. Some experts think that cravings for certain foods are linked to a mom-to-be's nutritional needs, but others think that pregnancy cravings can't be explained that easily. If you're having cravings, go ahead and indulge in moderation. But if you start to crave nonfood substances, such as laundry starch, dirt, or clay (a condition called pica), let your provider know.
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You may suddenly find that certain foods you used to enjoy now seem completely repulsive. Food aversions may be a side effect of rapidly increasing levels of estrogen in your system. Common food aversions during pregnancy include meat, eggs, dairy products, spicy foods, foods with strong smells, and coffee.
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Many newly pregnant women find they're overwhelmed by gag-inducing smells. A heightened sense of smell is a common side effect of rapidly increasing levels of pregnancy hormones. If cooking smells are making you feel particularly ill, ask your partner or another loved one to make your meals, or get restaurant takeout or ready-to-eat food from the grocery store.
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Even if you've never had heartburn before, you might experience it during pregnancy due to hormonal and physical changes. It's an unpleasant burning sensation between your lower throat and the bottom of your breast bone. If you're suffering from heartburn, avoid carbonated drinks, caffeine, chocolate, citrus fruits and juices, tomatoes, mustard, vinegar, mint products, and processed meats. Foods that are fatty, spicy, fried, or highly seasoned may also upset your stomach. Chewing gum after eating can help neutralize your stomach acids.
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Up to half of pregnant women will have constipation during pregnancy. Keep things moving with plenty of water and high-fiber foods like fruits and vegetables, beans, and whole grains. Some moms swear by adding unprocessed wheat bran or prune juice to their diets. Pregnancy exercise can also ease constipation.
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Item descriptThis is peak morning sickness time. Some experts believe that morning sickness may be the body's way of protecting your baby from toxins in early pregnancy. This theory makes sense because the first trimester – when most women have the strongest morning sickness – is the crucial period of development when all of your baby's organs and physical structures form. Nausea can strike at any time of day or night, not just in the morning, but that doesn't mean you have to suffer.
Pregnancy checklist at 9 weeks pregnant
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It's not too early to start bonding. Take some time each day to sit quietly: Focus on the miracle unfolding inside you, and plan for the kind of parent you want to be. Or you may want to journal or write a letter to your baby.
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Though your partner may never understand the visceral realities of pregnancy, they can still participate in special moments and bond with your baby before birth. You can involve your partner in your pregnancy by encouraging them to talk to the baby, reading pregnancy books or looking at pregnancy apps together, and making joint decisions.
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Walking is a safe activity you can continue throughout pregnancy, and one of the easier ways to start exercising if you haven't previously been active. If you've been walking for exercise, keep it up. If you were fairly inactive before you got pregnant, start with a slow walk and gradually build up to brisk jaunts of 20 to 60 minutes, as long as your healthcare provider has given you the go-ahead. When you're walking, make sure to protect your skin with SPF to avoid melasma, drink plenty of water, and have a high-protein snack 30 minutes before you exercise. If it's hot, stay cool with a hat and a spray bottle filled with water – or walk indoors on a treadmill.
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The flu shot and COVID-19 vaccine are safe and recommended for all pregnant women. Both shots significantly lower your chances of getting a severe infection and being hospitalized. There's also an important benefit to your baby: Antibodies that you develop during pregnancy in response to the flu shot and COVID vaccine are passed to your baby and provide protection after birth. That protection can be crucial because babies younger than 6 months can't be vaccinated against flu (are especially vulnerable to complications from flu) or COVID. Learn which vaccines are safe for pregnancy, and which ones to avoid.
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Take a closer look at what's inside your cupboards. Some cleaning products, pesticides, paint, solvents, and lead in drinking water from old pipes can be harmful to your pregnancy.
9 Weeks Pregnant Belly
If the band on your undies is digging uncomfortably into your growing waist, it's probably time to buy some maternity underwear. Many moms-to-be find that their underwear is one of the first things to feel too tight, even early in pregnancy. That's why maternity underwear is so amazing, it rests easily under your bump or has a panel to stretch over your belly for more support. Or, you can always just buy your regular brand of undies a size or two larger. Whatever helps you feel comfortable is important during pregnancy!
Tips & Resources
Prioritize rest — Fatigue is common as your body works overtime to support your baby’s organ development. Listen to your body and nap when you can.
Start tracking symptoms — Keeping a journal of nausea, cravings, or mood shifts can help you notice patterns and bring up questions at prenatal visits.
Connect with your partner — Share how you’re feeling and make space for bonding through conversations or even small rituals like evening walks.
Begin reviewing prenatal class options — It's not too early to explore education options like our 7-Week Prenatal Group Series and Private 1-on-1 Prenatal Class.
Get familiar with helpful guides like the Preparing for Your New Arrival Guide and the Third Trimester Tip Sheet to look ahead with confidence.
Stay hydrated and eat small, balanced meals to manage nausea and support your baby’s continued development.