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9 Weeks Pregnant: Week-by-Week Guide
4 mins read

IN THIS ARTICLE – At this stage of your journey, new developments are beginning to unfold. Check out this week-by-week guide to find out what’s in store for your baby and your body in week 9 of pregnancy.


Your baby at 9 weeks pregnant | Week 9 pregnancy symptoms | 3 expert tips for a healthy and safe pregnancy | Week 9 checklist: How to plan your pregnancy



  • 9 weeks pregnant is which trimester? First trimester
  • How many weeks of pregnancy are left? 31 weeks
  • 9 weeks pregnant is how many months? You’re in your third month.

With week 8 of your pregnancy complete, you’re on week 9. Enjoy it, as week 10 is on the horizon! 

One of the most exciting things about pregnancy is how many changes you’ll experience with your little one over the span of just 7 days! Here’s some tips and tricks to keep on top of all that’s happening.

Your baby at 9 weeks pregnant

What's happening in there

  • Your baby is the size of a cherry.
  • You’re officially in the last two weeks of your first trimester.
  • The countdown continues: you’ve got 31 weeks to go!

What happens during the 9th week of pregnancy?

  • A baby baby: Your little one is now about three quarters of an inch long and weighs one tenth of an ounce.
  • Tiny tummy: Baby’s digestive tract and anus have formed but they won’t be producing waste for quite a while yet.
  • Heads or tails: As your baby’s face becomes more pronounced, the tiny tail-like tip of the spinal cord has shrunk considerably and almost disappears by the end of this week.
  • Baby's working hard: The tiny heart in there is now beating 150 times a minute, or almost double your heart rate.
  • Bend and flex: Baby’s bones and tiny muscles are growing, with development between the brain and nerves meaning the elbow can bend this week.

What should I be feeling at 9 weeks pregnant?

  • There are mood swings, morning sickness, fatigue, and weird cravings—but these things don’t matter as you’re doing great and you’ll be hearing baby’s heart beat very soon.
  • You may notice the appearance of red or blue spider (or varicose) veins in your legs. Try to avoid doing things that restrict blood flow like crossing your ankles or legs or wearing tight socks.
  • Food aversion is when something you’d normally love holds no appeal or even the thought of it makes you feel ill. It won’t last forever, but here are some tips for how to deal with it right now.

How big is your baby at 9 weeks pregnant?

 9 Weeks Pregnant

Baby Weight

0.07 ounces

Baby Length

0.9 inches

Baby Size

Comparable to a cherry


Week 9 pregnancy symptoms

During week 9 of pregnancy, your body is changing quickly. As your baby grows, you will too, and there are certain pregnancy symptoms you may experience at this time.

6 common week 9 pregnancy symptoms

  • The nauseating symptoms of morning sickness here. Try ginger, vitamin B6 and even acupressure bracelets to help relieve the nausea.
  • You're still experiencing mood swings. This is totally normal given how your hormones are surging.
  • You’ll be very fatigued at points as your body draws nutrients in to feed your little one.
  • You will feel like you need to pee all the time, but at the same time, you need plenty of fluids to stay hydrated—just avoid too much coffee.
  • If you’re getting headaches, it may be from hormones or just your body adjusting to changes in posture. You can still take acetaminophen if you already do.
  • If you’re still feeling nauseous from morning sickness, try foods that contain ginger, ginger ale, or ginger lollipops. Also try foods that are bland and low in fat.

3 expert tips for a healthy and safe pregnancy

Being 9 weeks pregnant is an important time for you and your baby. Here’s some more expert-recommended advice on how to adjust to this new stage and keep you and your baby safe.

  1. Love at first sight: You will be coming up for your first prenatal appointment. There will be a range of tests, but there’s also the excitement of hearing your baby’s heartbeat for the first time.
  2. Is that safe: Educate yourself on what’s safe to eat and do when you’re pregnant. It will surprise you, like not handling cat litter or having to change to cosmetics that are pregnancy-friendly.
  3. Burn baby burn: Heartburn is a part of pregnancy for most women at some stage, due to the effects of hormones. Avoid heartburn triggers, such as acidic or spicy foods, carbonated beverages, and fried foods.

Week 9 checklist: How to plan your pregnancy

Knowing what to do week-by-week can help you feel prepared and alleviate stress. Add these new items to your to-do list this week. You’ve got this, mama!

To-Do Checklist
Read up on what to expect at your prenatal appointment
If you haven’t already, come up with a fun way to tell your family and/or friends


Learn more about your pregnancy, including pregnancy planning and pregnancy nutrition to feel prepared to continue this magical adventure. You’re armed with the facts, what to do, and now you can take time to connect with the little one growing inside you.

 With week 8 in the rearview mirror and week 9 going strong, look to the future and what's coming up in week 10!

Join Enfamil Family Beginnings

It’s your 9th week of pregnancy, and you and your baby are experiencing exciting changes every day. Prepare for your new arrival with help from Enfamil Family Beginnings. It’s the perfect resource for new and expecting moms. Save on Enfamil products, track your bump and baby’s growth, and get helpful articles each week relevant to your journey. Join now for up to $400 in free gifts.

All information on Enfamil, including but not limited to information about health, medical conditions, and nutrition, is intended for your general knowledge and is not a substitute for a healthcare professional's medical identification, advice, or management for specific medical conditions. You should seek medical care and consult your doctor or pediatrician for any specific health or nutrition issues. Never disregard professional medical advice or delay seeking medical treatment, care, or help because of information you have read on Enfamil.