The developing baby is termed an embryo from week five until the end of the 10th week of pregnancy (counted from the last menstrual period). 2 What Happens Each Week During Pregnancy?
It divides to become a blastocyst and travels down the fallopian tube to the uterus, where it may implant to establish the pregnancy. The developing baby is termed an embryo from week five until the end of the 10th week of pregnancy (counted from the last menstrual period). 2
Your baby moves through different stages, starting as a blastocyst, then maturing into an embryo, and then a fetus. Around the five week mark, your baby’s heart will begin to beat, at 27 weeks they’ll have regular sleep and wake cycles, and at 39 weeks your baby is physically developed.
Pregnancy Weeks Pregnant Embryo Fetus Development Image
