Does morning after pill affect period? ie make it come faster? when wil it be possible to know if it worked?

No necessarily: Although the patient should be informed that their next period may be heavier or lighter, earlier or later, 95% of patients have their menstrual period at the usual time or within ±7 days. The sooner it is taken after the unprotected intercourse, the more effective it is. If taken within 72 hours, it will prevent 7 out of 8 undesired pregnancies. If you are more than a week late, do a preg test.

Sometimes: Potential side effects w emergency contraception includes menstrual flow changes (spotting, bleeding, early or late period). The way to know if it worked is to either have a normal period or a negative pregnancy test.

See below: Agree with Dr. Fowler. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex, if you have sex. Get HPV vaccine,