I took an emergency contraceptive pill last Friday and I wasn't suppose to get my period until the 5th or 6th of November. But I had sexual intercourse yesterday and my partner noticed some blood but we didn't mind it that much. This morning I woke up and I was bleeding. I'm not exactly sure but I think I got my period. The whole point is, can it be possible for the contraceptive pill to cause a woman's period to come a week or two sooner?