
21 Weeks Pregnant | Belly, Baby Movements, More
Oct 08, 2019· Stretch marks. At 21 weeks pregnant, your baby might be starting to leave his mark — in the form of stretch marks, that is — all over your stomach, butt, thighs, hips and pink, red, purple, reddishbrown or dark brown streaks appear as your body expands and your tummy and breasts just keep on growing: The supporting tissue under your skin gets torn as the skin stretches.