PMS is a combination of physical and emotional symptoms that many women get after ovulation and before the start of their menstrual period. Researchers think that PMS happens in the days after ovulation because estrogen and progesterone levels begin falling dramatically if you are not pregnant. PMS symptoms go away within a few days after a woman’s period starts as hormone levels begin rising again.
Some women get their periods without any signs of PMS or only very mild symptoms. For others, PMS symptoms may be so severe that it makes it hard to do everyday activities like going to work or school. Severe PMS symptoms may be a sign of a premenstrual dysphoric disorder. PMS goes away when you no longer get a period, such as after menopause. After pregnancy, PMS might come back, but you might have different PMS symptoms.