illustration of developing human baby at 9 weeks

9 weeks pregnant

For information about weeks 1 through 11 of a twin or multiple pregnancy, tap here.

Week nine is a big one — all of Baby’s body parts are intact, and now it’s simply time for them to develop and grow!

How’s Baby?

Baby is now almost an inch long (.9 inches), the size of a pecan, and though they’re not fully developed, all of their essential muscles and body parts are present. Your little one’s kidneys, liver, brain and lungs that are all starting to function on their own too, and they’re even starting to develop taste buds! Although Baby’s eyes are forming more complex structures, their eyelids will shortly fuse shut for another four months or so. Your baby’s inner ear is also beginning to form the fluid that will allow them to develop a sense of balance. Baby also has toes, bones in their arms, and joints that bend in their elbows.

Perhaps the most exciting part about week 9 is the increased likelihood that you may be able to hear Baby’s heartbeat using a fetal doppler, a super special first for you and your little one. Baby’s heart has been beating for a while now, but now it’s really starting to develop, forming distinct chambers and valves. They grow up so fast, don’t they?

What's new with you?

You’ve made it to your third month of pregnancy, which means that you have just about one month until the dreaded first trimester — often full of icky symptoms — is over!

Feeling moody? Hormonal irritability can peak at around your ninth week of pregnancy. Although relief should come soon — for most folks moodiness eases up around week ten before coming back in full force closer to your due date. That being said, it’s important to know that if you’re not feeling like yourself, or if your feelings of anxiety or depression persist, you should contact your healthcare provider. Perinatal mood disorders are common and treatable.

You’re also likely to feel fatigued, as your body is still working overtime to develop the placenta in order to most efficiently provide nutrients to your baby and because your blood sugar and blood pressure may be running low. But there may be an end in sight to these symptoms as the placenta will start to take on a bit more responsibility for doing the hormonal heavy lifting soon, which will take some of the burden off of you.

Whether or not you’re starting to show off a baby bump just yet, you’ll probably notice that your lower abdomen is a bit firmer than usual, and no wonder! There’s a wealth of growth going on in there, and by now your uterus will have doubled in size, so get ready for that baby bump to make an appearance before too long. You should also have been gaining some weight. It’s common to gain between 1 and 5 pounds (.45-2.25 kg) during the first trimester. But between nausea and aversions, some folks have a harder time eating or gaining weight early in pregnancy. If this has been a problem for you, don’t worry. Fortunately, you don’t need to put on much weight in your first trimester. As some of these challenging symptoms lessen going forward, your appetite should improve, which will help you gain weight in a way that will help you best nourish your growing baby.

Reviewed by the Ovia Health Clinical Team
Read more
Find the Ovia app for you!
Get our app at the Apple App Store Get our app at the Apple App Store Get our app at the Google Play Store Get our app at the Google Play Store