Pregnancy Week by Week

Get a window on what’s happening in your pregnancy, week by week. From week four to week 42, your baby is experiencing a miraculous transformation from a clump of cells to a fully formed (and totally cute) newborn. Just imagine, as early as five weeks, your baby is already starting to form major organs (heart, stomach, liver, and kidneys) and systems (digestive, circulatory, nervous). By eight weeks, your raspberry-sized womb-mate is moving her arms and legs. At the beginning of your second trimester (week 14), your wee one is sucking his thumb. By week 28, the first week of the third trimester, baby (now as big as an eggplant) is prepping for breathing, developing his eyesight and packing on pounds in anticipation of life outside the womb. Each week is a new miracle. Less miraculous is how a mom-to-be may feel. Pregnancy Week-by-Week charts your baby’s development but also lets mom know what she might be feeling during each week of her pregnancy. Pregnancy week by Week includes everything mom needs to know to feel a sense of control over her pregnancy. Each week offers a complete guide to what you might feel, your must-do’s, your nice-to do’s, and answers and advice on everything pregnancy-related. Plus each week’s guide offers tips on maintaining a healthy and comfortable pregnancy from strategies on coping with pregnancy symptoms (morning sickness anyone?) to ideas for healthy eating, and pointers on talking to your OB. Let us guide you along your pregnancy, week by week.

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27 Weeks Pregnant

At 27 weeks, baby is breathing (it’s amniotic fluid, not air, but it still counts) and even showing brain activity. You’ve got a lot on your brain, too, from wondering what labor and delivery is going to be like to trying to find the best pediatrician for baby. The annoying symptoms you’ve been having probably aren’t going away, but at least you’ve probably found some ways to deal with them -- and hey, maybe you’re used to them right now. As you say goodbye to the second trimester, you can look forward to some pretty embarrassing stuff (like having to pee all the time -- and maybe even when you don’t mean to at all) that’s all par for the late-pregnancy course. It’s time to head down the home stretch. Are you ready?

Your baby's the size of a rutabaga!
At 13.6 to 14.8 inches and 1.5 to 2.5 pounds, she's not just getting bigger, she's getting smarter.

your baby at 27 weeks
  • She's practicing inhaling and exhaling with her rapidly developing lungs.
  • It's official: Baby's showing brain activity! And her brain will keep on getting more complex.

pregnancy symptoms at 27 weeks

your must-do's
your nice-to-do's

watch: your bump, week 27

Reminder: Medical info on The Bump is FYI only and doesn't replace a visit to a medical professional.