Disadvantages of Emergency Contraception

Approximately half of all women who take emergency contraception experience nausea or vomiting, but these symptoms typically only last for 24 hours. Some women also experience breast tenderness, headaches, dizziness, and irregular bleeding. Nausea may be alleviated by taking a Dramamine pill one hour before each dose of emergency contraceptive pills.
ECPs are not as effective as other contraceptives. Also, ECPs are not as effective as inserting a Copper T IUD after unprotected sex.
ECPs should only be used in the case of an emergency and should not be used as your regular contraceptive. However, if you do use ECPs several times, they are not dangerous.
ECPs provide no protection against sexually transmitted infections; you may need to be treated for infection.
Some pro-life advocates consider ECPS to be a form of abortion.
Costs for emergency contraceptive devices vary greatly. Some clinics and health centers offer free or discounted ECPS based on income. The total cost of getting ECPs may be as much as $45 to over $100.