Mutlu Anne Logo

Mutlu Anne

Download App
Week 33 Baby
Third Trimester

Length

43.7 cm

Weight

1.918 kg

Size

Pineapple

Week 33

Your Baby is the Size of a Pineapple

Baby's kicks may feel sharper

With that much baby inside your uterus, your amniotic fluid level has maxed out at 33 weeks pregnant, making it likely you have more baby than fluid now. That's one reason why some of his pokes and kicks feel pretty sharp these days.

Baby differentiates day from night

If your uterus had eyes, here's what you'd see: your fetus acting more and more like a baby, with his eyes closing during sleep and opening while awake.

And because those uterine walls are becoming thinner, more light penetrates the womb, helping your baby differentiate between day and night. Now if only baby can remember that difference on the outside!

Fetal immune system is developing

Good news! Your baby has reached an important milestone about now: He's got his own immune system. Antibodies are being passed from you to your little one as he continues to develop his fetal immune system, which will come in handy once he's outside the womb and fending off all sorts of germs.

The Mutlu Anne app is with you every step of the way on your pregnancy journey.

Thanks for reading.

This Week's Highlights

Soft spot

Soft spot

The plates of bone in your baby’s skull are still fairly pliable, which makes it easier for him to squeeze down the birth canal.

Thirsty baby

Thirsty baby

Your baby drinks up to a pint of amniotic fluid a day! This helps prepare your baby’s gastrointestinal system for prime time.

Packing on the pounds

Packing on the pounds

Your baby is gaining weight at a fast clip now, putting on about half a pound a week. He'll come close to doubling his weight by the time he's born.

Previous Week

Week 32

Next Week

Week 34

Mutlu Anne

Pregnancy Tracker

Your trusted companion throughout your pregnancy journey. Get personalized support from conception to birth.

Quick Links

FeaturesWeek by WeekHow It WorksDownload App

Stay Updated

Subscribe to get pregnancy tips and app updates delivered to your inbox.

Secure

Trusted

4.9 Rating

© 2026 Mutlu Anne. All rights reserved.

Made with

for moms

Privacy PolicyTerms of Service[email protected]0541 132 30 00
VisaMastercard