After unprotected sex I took the first pill about 2hrs after and then I took the second pill too late because my alarm did not wake me up in time. I was supposed to take it at 1am(12 hrs later) but I ended up taking it around 7am so I was 6hrs too late. In other words, I took the second pill 18 hrs later. Can someone please tell me what this means or what I should do?