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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31 Weeks Pregnant

Welcome to week 31. Can you believe all five of baby’s senses are fully developed? He also keeps getting smarter. That’s probably good to know, since you might actually feel a little dumb. You’re not! It’s just that many moms-to-be find themselves acting absentmindedly during the third trimester. Some say that “pregnancy brain” isn’t a proven physical ailment, but can you think of another time in your life when you’ve had more on your mind than now? We’re guessing no. That right there is enough of a reason to be so forgetful. From 31 weeks on, you’re bound to feel a lot of the same symptoms -- some may get worse, some may become bearable. And you might start to have more trouble getting around as you get heavier and feel more and more short of breath. Remember not to push yourself too much. It’s good for you and baby to get some exercise, but definitely take breaks to rest as much as you need.

Your baby's the size of a pineapple!
He's about 15.2 to 16.7 inches long and weighs about 2.5 to 3.8 pounds this month. He's getting so big, he's probably crowding your lungs.

your baby at 31 weeks
  • He's going through major brain and nerve development.
  • Eye development, too. His irises now react to light!
  • All five of his senses are in working order.

pregnancy symptoms at 31 weeks

your must-do's
  • Don't forget to schedule two prenatal visits to your OB this month, if you haven't already.

your nice-to-do's

watch: your bump, week 31

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