4 Weeks Pregnant
THIS WEEK: FIRST MISSED PERIOD
Baby's DevelopmentThe embryo is formed. These three primitive cell layers will generate every organ and tissue in your baby's body.
Around the end of this week, primitive blood vessels and circulatory system are formed.
Your DevelopmentsMissing your period this week may be your first real sign of pregnancy
Time for a pregnancy test as results are more likely to be reliable now. Make sure to follow the manufacturer's instructions to avoid an incorrect result.