Dr Cherry stressed that emergency contraception was extremely safe. She advised women that if there came a time where they felt an unplanned pregnancy may occur after unprotected intercourse they should consider taking emergency contraception. Some women may experience breast tenderness and about 50 percent of women experience nausea after taking the yupze emergency contraception regime. The Levonogestrel regime causes nausea in only 10 percent of women. Another nuisance side effect is that emergency contraception can disrupt a woman's menstrual cycle.
Emergency contraception prevents pregnancy in one of two ways.
If the pills are taken before ovulation they can delay this process. If ovulation has already occurred the pills can prevent the egg implanting in the uterus.