Fetal development: The first trimester - MayoClinic.com: "You're pregnant. Congratulations! You'll undoubtedly spend the months ahead wondering how your baby is growing and developing. What does your baby look like? How big is he or she? When will you feel the first kick?
Fetal development typically follows a predictable course. Find out what happens during your baby's first three months in the womb by checking out this weekly calendar of events."