If I am already taking birth control pills, and have been for a while, and I don’t know how strong they are, and if they are good enough to prevent pregnancy, can I take the morning after pill after I have sex, just to make sure that I cannot get pregnant? Or will the two combinations of pills mix together and cause seriously traumatic side effects?
If you always take your birth control pills correctly, you have a very high level of protection against pregnancy — more than 99%. Emergency contraception — the morning after pill — is helpful in case of accidents or emergencies, such as if you forget to take your birth control pill.
Emergency contraception is expensive, can cause some uncomfortable side effects, and can disrupt your menstrual cycle, so most women choose not to take it regularly. However, taking emergency contraception when you’re on regular birth control pills is safe.