Question: 5 weeks pregnant what is happening?
Answer: At 5 weeks pregnant, baby is the size of an apple seed. Yep, your embryo is now measurable—though at week five of pregnancy, it's a wee 0.13 inches from crown to rump (a.k.a. head to bum)—and baby's gearing up for much more growth. In fact, in the next week they'll almost double in size. Grow, baby, grow!