A full-term pregnancy typically lasts around 40 weeks, calculated from the first day of the woman's last menstrual period.

Labor, delivery, and parturition are all terms used to describe the process of giving birth.

The three stages of labor are dilation (opening of the cervix), expulsion (delivery of the baby), and crowning (the baby's head emerging from the birth canal).

True labor contractions are involuntary, rhythmic contractions of the uterus that cause the cervix to dilate and the baby to descend into the birth canal.

Amniotic fluid serves multiple purposes, including protecting the baby from injury, providing a warm and moist environment, and allowing the baby to move freely.

Oxytocin is the hormone responsible for triggering the onset of labor and stimulating contractions of the uterus.

Afterbirth, placental delivery, and third stage of labor are all terms used to describe the expulsion of the placenta after the baby is born.

Cesarean section is a surgical procedure in which the baby is delivered through an incision made in the mother's abdomen and uterus.

Postpartum period, puerperium, and fourth trimester are all terms used to describe the period of time immediately after childbirth.

Uterine involution, lochia discharge, and breast engorgement are common physical changes that occur in a woman's body after childbirth.

Baby blues, postpartum depression, and postpartum anxiety are common emotional changes that occur in a woman after childbirth.

Prenatal care is important for monitoring the health of the mother and baby, identifying and managing potential risks, and providing education and support to the mother.

Regular contractions, rupture of membranes, and bloody show are all signs and symptoms of labor.

Epidural anesthesia, spinal anesthesia, general anesthesia, and natural childbirth are all different types of pain relief options available during labor.

Hemorrhage, infection, and preeclampsia are all potential risks and complications associated with childbirth.