"my period usually comes on towards the end of the month. n my boyfriend and i had unprotected sex on the 2nd and i took the pill that same day. the 8th of that month my period came on ( it came early ) n by the 15th it was still on and i was a lil worried because its been 8days that my period has been on. the 16th came and it went off but the 18th came and i started bleeding again. it&#039;s like i&#039;m having a 2nd period "