4 Weeks Pregnant (Day 22 to Day 28)
What happens to you?
By the end of this week, you will know if you are pregnant. Take a pregnancy test. If the test is positive, you should see your doctor immediately. Morning sickness, nausea or vomiting might occur.
What happens to your baby?
Attachment and implantation of the blastocyst into the endometrium is complete and thus begins the fast development of the embryonic disc, amniotic cavity and yolk sac. By the end of this week, the embryonic disc shall complete its development.