A free, online resource about the Third Trimester of Pregnancy Third Trimester - What exactly is a trimester? Every pregnancy is divided into three time periods, or trimesters, which are each about three months in duration and called the Third, second, and third trimesters. First Trimester Third Trimester hGC Levels Fetal Development and Symptoms Check out the development phases, and possible symptoms that might be experienced during your maternity via the following link: Pregnancy Week by Week. Discover when your baby’s eyelashes are developing. By Week 31 your baby’s eyes respond to light, appears less red and wrinkled and by this time your baby might have grown a full head of hair. Labour that starts before 37 weeks is considered premature. Third Trimester - When does the Third trimester end? When does the Third trimester end? How long is the Third trimester? The following table provides details of the duration and time periods for each of the Trimesters of pregnancy, including the Third trimester: |