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.

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First Trimester Quiz

The first three months of pregnancy are filled with lots of firsts -- some not as great as others. Take a pregnant pause and see how you score on your first trimester knowledge.

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  • 10 Must-have Tests During Pregnancy
    10 Must-have Tests During Pregnancy

    To make sure your little bundle of joy arrives healthy, it's a good plan to have regular monitoring tests during your pregnancy. See what's in store for the next nine months. See more »

  • First Trimester Quiz
    First Trimester Quiz

    The first three months of pregnancy are filled with lots of firsts -- some not as great as others. Take a pregnant pause and see how you score on your first trimester knowledge. See more »

  • Guide to Being 10 Weeks Pregnant
    Guide to Being 10 Weeks Pregnant

    By Week 10, if you were to look closely at your baby, you'd notice she doesn't look like a tadpole anymore. Her embryonic tail, at the bottom of the spinal cord, has disappeared and her rapidly developing spinal nerves have become visible. What else can you see? See more »

  • Guide to Being 11 Weeks Pregnant
    Guide to Being 11 Weeks Pregnant

    Hopefully your morning sickness has started to subside and your energy level has increased. You might even be starting to see that "pregnancy glow." But you will be experiencing some new changes ahead. Let's take a look. See more »

  • Guide to Being 12 Weeks Pregnant
    Guide to Being 12 Weeks Pregnant

    The day comes when you take a drive without a pit stop and get through a day without getting sick. Hopefully first-trimester symptoms are starting to ease up in week 12, leaving plenty of room for a new set of sensory experiences. See more »

  • Guide to Being 13 Weeks Pregnant
    Guide to Being 13 Weeks Pregnant

    In week 13, pregnancy is probably starting to be a whole lot more fun. Lots of women find the middle months to be the easiest, with fewer unpleasant symptoms and new reasons to be excited. So what should you expect in this banner week of pregnancy? See more »

  • Guide to Being 14 Weeks Pregnant
    Guide to Being 14 Weeks Pregnant

    Now solidly in your second trimester, you're probably more excited than ever about your little bun in the oven. At 14 weeks, development is progressing at a breakneck pace. What's next? See more »

  • Guide to Being 15 Weeks Pregnant
    Guide to Being 15 Weeks Pregnant

    You're rounding third on month four, and with just 25 waist-expanding weeks until the moment you've been waiting for, you might be feeling better than you have in some time. What should you expect in week 15? See more »

  • Guide to Being 16 Weeks Pregnant
    Guide to Being 16 Weeks Pregnant

    This is a big week for baby mamas! You might find out your little one's gender, and you can also start feeling your baby's movements. Also, it's time to book that babymoon you've been dreaming about -- you deserve it. See more »

  • Guide to Being 17 Weeks Pregnant
    Guide to Being 17 Weeks Pregnant

    Pregnancy is a strange and wonderful time at 17 weeks along. Sure, your gums are bleeding and you're dizzy all the time, but you've got life growing inside you! Find out what your little guy or gal is up to. See more »

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