THIRD TRIMESTER
Assuming a 40-menstrual-week pregnancy, the third trimester is assumed to
extend from 26–40 weeks.
Normal symptoms include decreased libido, lower back and leg pain, urinary
frequency, and Braxton-Hicks contractions.
Lightening describes descent of the fetal head into the pelvis resulting in
easier maternal breathing, pelvic pressure.
Bloody show describes vaginal passage of bloody endocervical mucus, the
result of cervical dilation before labor.
Average weight gain is 1 pound per week after 20 weeks.
Complications include premature membrane rupture, premature labor,
preeclampsia, urinary tract infection, anemia, and gestational diabetes.http://ebookobgyne.net