Obstetrician: A doctor who specializes in care of women during pregnancy and childbirth.
Ovulation: Release of the egg from the ovary.
Oxytocin: A hormone secreted during labor to stimulate contractions and milk production. It is sometimes administered in synthetic form (Pitocin) to begin or speed labor.
Pediatrician: A doctor who specializes in the care of children.
Pelvic floor: The sling of muscles that holds the pelvic organs in place.
Perineum: The region between the anus and genitals.
Phenylketonuria (PKU): An inherited congenital disorder that can lead to mental retardation.
Pitocin: The synthetic form of oxytocin.
Placenta: The structure through which the fetus receives nourishment and oxygen during gestation.
Placental abruption: Premature separation of the placenta from the uterine wall.
Placenta previa: A condition in which the placenta partially or completely covers the cervix, hindering vaginal delivery.
Polyhydramnios: An excessive amount of amniotic fluid.
Postpartum: After birth.
Preeclampsia: A disorder of pregnancy characterized by high blood pressure, edema, and kidney malfunction.
Presentation: The position of the fetus in relation to the cervix before labor begins.
Prolapse of the cord: A situation during or before labor in which the umbilical cord passes through the cervix before the fetus.
Pyelonephritis: An infection of the kidneys.