The third trimester of pregnancy may bring uncomfortable symptoms, but the good news is that baby is almost here! Some common symptoms to expect include back pain, enlarged breasts, Braxton-Hicks contractions, discharge, fatigue, and more. You should consult your doctor if you experience any vaginal bleeding. Your baby is growing, too. By now, the baby may respond to sounds, change position, and gain even more weight. You will also undergo tests such as fetal heart monitoring and a biophysical profile. Follow the links below to find WebMD's comprehensive coverage about what to expect in the third trimester.