There are two types of emergency contraception: pills or an IUD. The more popular form comes as a little packet of two pills (the brand name is called Plan B). There are two different types of pills, progestin and a combination pill. Progestin keeps the egg from attaching to the uterine wall and also prevents the sperm from reaching the egg. The combination pill is a mixture of progestin and estrogen. It stops the ovaries from releasing eggs that could potentially be fertilized by sperm. Some women experience side effects such as minor cramping, discomfort or nausea.
An IUD (Intrauterine Device), is the other form of EC. It is a little T-shaped plastic device doctors can place into the uterus to prevent pregnancy. It can be used up to five days (120 hours) after sex, and has about the same effectiveness as EC pills. Doctors can take out the IUD following the woman's next period, or it can be left in place for up to 10 years to be used as regular birth control. Most women use an IUD as regular birth control, but few know it can be a form of EC too.
