hey me and my boyfriend had un protected sex we got the pill 3 days after we had unprotected sex which was still in the 72hr time line but we took the second pill 12hrs later which was the fourth day...would the pill still work if we took the second pill after the 72 hrs? or could i have been already pregnant from the month before cause my cycle was five days late it went up on the 22nd and now its down again on the 30th