I started the pill a little over a month ago, I'm on the first week of my second pack.  I had sex 6 times (I think) on this cycle, 3 or 4 times were anal sex without a condom and the other 2 times used a condom and it was vaginal sex.  My period is never really consistent.  Usually 32 to 34 day cycles, but it has ranged from 28 days to 35 days.  Today is cycle day 37 and I still haven't gotten my period.  I have been incredibly stressed this cycle, my sleeping schedule is completly messed up because, of my stress, I'm talking I'm up all night and sleep during the day messed up.  I also did just start my birth control pill a little over a month ago.  I'm usually pretty good about taking my pill, never missed a day, a couple days I've been an hour late and one day I was 6 hours late when I was sick but, other than that good.  I'm just wondering if anyone thinks I'm pregnant, I've never been this late before so I'm kinda freaking out.  Or is because, stress and my sleeping schedule that I'm late?  Or is because, I just started the birth control pill?  Please help.