Unless a medical professional specifically warns against it, sex is fine during a pregnancy, as it poses no risk to the baby.

Some women will suddenly experience heavy bleeding, painful cramps and abdominal pain. Though less common, this type of behaviour is still within the parameters of a normal post-miscarriage experience, as these symptoms indicate the that the body is simply expelling parts of the placenta, which was previously still attached to the uterine wall. Symptoms should resolve themselves without medical aid.

If your baby’s skin appears blue colored, it may be a sign that the lungs or heart are not working properly, and the baby should be seen by a doctor immediately. A newborn’s hands or feet may appear blue when cold, and should quickly return to pink when warmed. Also, the face, lips, or tongue may appear blue during a period of hard crying, but should return to pink once the crying has stopped.

Because sperm can survive in the fallopian tubes for up to a week, you don't have to time sex to the exact moment you ovulate to get pregnant. This window includes the five days before and the day of ovulation itself.

For a man, excessive alcohol consumption (two to four drinks per day for over two months) can diminish fertility and for a woman, even moderate drinking can make it harder to get pregnant.

The main external structures of the female reproductive system include: labia, Bartholin’s glands, clitoris, vagina, uterus, ovaries and fallopian tubes.