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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16 Weeks Pregnant

Stay on the lookout for some fluttering sensations in your abdomen. It might not be right at 16 weeks, but pretty soon you’ll start feeling baby moving around in there. At first those moves might feel like gas or a muscle twitch, but over time, as baby gets bigger and stronger, they’ll be unmistakable. Of course, feeling those movements comes with other issues, like having your lungs crowded by your growing babe. That could make it seem tough to catch your breath from time to time. Don’t worry: There are some positive symptoms you might be having at week 16. For example, some moms-to-be find their hair and nails grow faster. (Your hair might actually look thicker and more lustrous and your skin might look radiant, too. Woo hoo!) Another cool fact? Baby’s starting to be able to hear your voice -- and she’ll recognize it at birth -- so feel free to chat her up.

your baby's the size of an avocado!
Now, she's about 4.6 inches long and weighs about 3.5 ounces, and she's big enough that your doctor may be able to hear her heartbeat.

your baby at 16 weeks
  • She's listening to your voice, thanks to tiny bones forming in her ears.
  • She's growing hair, lashes and eyebrows.
  • And she's forming taste buds.

pregnancy symptoms at 16 weeks

watch: your bump, week 16

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