Pregnancy is an amazing time in a family’s life as you get ready to add a new member to your home, but not everybody completely understands the timeline of how the female body changes and of how the baby develops. The pregnancy itself will typically last at least 40 weeks from the first day of your last normal period. Here’s what that means: 40 weeks of adjusting to the growing baby bump, checkups, prenatal vitamins, and decorating! Getting ready for the baby is also about keeping the mom happy and healthy (or else). Here’s a timeline for the 3 stages of pregnancy to keep you or the expecting parents in your life on tracks.