This may occur while you are taking the methergine which causes the uterus to contract, or may start after you have finished taking the methergine. In any case, mild to heavy cramping is not unusual. You can take any non-aspirin pain reliever as directed to relieve discomfort. Do not take aspirin since it thins the blood, and will tend to make your bleeding heavier. A small percentage of women experience some increased breast tenderness for the first few days after the procedure.
Some women even produce milk.
If this happens to you, simply wear a tight fitting bra or place ice bags on your breasts. Milk production usually diminishes in a few days. The methergine prescription should be taken four times a day for two days, if indicated. This medication reduces the bleeding and helps to contract the uterus. This is not something to worry about.