My average cycle is 31 days. It's now on day 37 without as much as a cramp, which I always get a week before my period. I took a at home pregnancy test. Which came out negative. I have noticed that I've been running to the bathroom more often...which is the only "symptom" I've received. Not sure what to think. I know my boyfriend and I had had sex during my ovulation period. I'm trying not to rack my brain too much...it will drive a girl crazy. I just want to know. Mainly because I smoke and drink...I'm not drinking until I know for sure...and plan to stop smoking as soon as I get a positive answer.