Pregnancy by week

Congratulations, you’re officially into your second trimester! For many women (unfortunately, not all), week 14 means the end of morning sickness.

At 15 weeks, your baby about the size of your fist and just might be sucking his thumb. In fact, you may be able to see this in an ultrasound at this point.

Your baby’s fingernails are well developed by 16 weeks, and she is able to move her arms and legs. In fact, you may feel her move in the next few weeks.

How big is your baby at 17 weeks? Spread one of your hands wide open—your baby is about the same size.

By 18 weeks, it might look like your baby is bulking up! Over the last week, her weight has increased about 50 percent.