Like HowStuffWorks on Facebook!

Fetal Development

Fetal Development answers your questions about the changes that take place in the womb during pregnancy. Learn about each of the three trimesters and the developmental milestones that occur in each.

Featured
Guide to Being 33 Weeks Pregnant

What's the mind-body experience you'll have at 33 weeks? Every kick helps you count down to the day you'll deliver your little acrobat. The nursery's ready, but there are still some things to think about and some important preparations to make.


Fetal Lambs in 'Biobags' Show Promise for Artificial Human Wombs

Could a new artificial womb help human premature infants? Learn more about this new artificial womb in this HowStuffWorks article. See more »

Survival Rate Improving for Extremely Preterm Babies

A new study shows improving survival and good-health chances for extreme preterm babies. Learn more in this HowStuffWorks Now article. See more »

10 Must-have Tests During Pregnancy

10 must-have tests during pregnancy are explained in this article by HowStuffWorks. Learn more about the 10 tests you should have done during your pregnancy. See more »

Guide to Being 39 Weeks Pregnant

What is pregnancy like when you're 39 weeks along? Check out TLC's guide to being 39 weeks pregnant. See more »

Guide to Being 40 Weeks Pregnant

What is pregnancy like when you're 40 weeks along? Check out TLC's guide to being 40 weeks pregnant. See more »

Guide to Being 41 Weeks Pregnant

What is pregnancy like when you're 41 weeks along? Check out TLC's guide to being 41 weeks pregnant. See more »

Guide to Being 42 Weeks Pregnant

What is pregnancy like when you're 42 weeks along? Check out TLC's guide to being 42 weeks pregnant. See more »

Guide to Being 42+ Weeks Pregnant

What is pregnancy like when you're more than 42 weeks along? Check out TLC's guide to being more than 42 weeks pregnant. See more »

Guide to Being 37 Weeks Pregnant

What is pregnancy like when you're 37 weeks along? Check out TLC's guide to being 37 weeks pregnant. See more »

Guide to Being 38 Weeks Pregnant

Looking for information about being 38 weeks pregnant? Check out our guide to being 38 weeks pregnant now! See more »