What does a 16 Week Fetus Look Like?

A 16 week old fetus will look like a baby and will be about 4 1/2 inches long weight about 3 1/2 ounces, in the next few weeks your baby is really going to grow fast. You should be able to tell on a ultrasound if it is a boy or a girl, one of the most exciting things to find out during a pregnancy, unless you want to keep it a surprise.