The Stages of Your Pregnancy
Your pregnancy is an exciting time of growth and change--for you and your baby. Counting from the first day of your last menstrual period, pregnancy usually lasts for 280 days or 40 weeks. The weeks are divided into three groups called trimesters and your body and your baby will be changing continually throughout pregnancy.
Learn more about the changes you and your baby will experience during each trimester of your pregnancy as well as helpful hints on how you can help create a healthy pregnancy.