Contraceptive Pill

Okay, so i decided to take the pill back to back as i was due my period the weekend i was seeing my boyfriend. We are in long distance relationship so only get to see each other every couple of months. I took the first 6 days. Day 6 we had intercourse. I was drunk that night and forgot to take my pill. I think i took one the next day but then i stopped taking it altogether. Its been almost 5 weeks since but i have not had a period. Is this normal? Could i be pregnant?