Topic Overview

Pregnancy can be exciting, mysterious, and exhausting. During pregnancy, your body does a ton of work to support the growth of your baby. And even though you can’t feel it yet, your baby is growing and changing very fast.

Wondering what your baby looks like now? As you enter your third month of pregnancy, your baby is about the size of a jelly bean. Average baby length is 12.7 mm (0.5 in.).

How your baby is changing

Here are some of the important facts and developments around 8 weeks.

  • The embryo starts out looking like a tiny seed, and then like a
    tadpole with a tail, and then more human by the end of the
  • When you are 6 weeks pregnant, your embryo has the
    beginnings of a brain, eyes, ears, heart, lungs, liver, and other organs. There
    are tiny bumps where arms and legs will grow.
  • When you are 8 weeks
    pregnant, the heart and brain have divided into their major parts. Your embryo
    has webbed fingers and has arms that bend at the elbow. The legs and feet will take
    a little more time to grow. Muscles will soon start working.


ByHealthwise Staff
Primary Medical Reviewer Adam Husney, MD – Family Medicine
Kathleen Romito, MD – Family Medicine
Specialist Medical Reviewer William Gilbert, MD – Maternal and Fetal Medicine

Current as ofMarch 16, 2017