Ok, so the last time I had sex with my fiance was the 9th of July. It was unprotected (as he had just proposed to me, we got kinda caught up in the moment, I guess).

Now it seems my period is coming later and later each month. I used to be on a 24 day cycle, but last month it was about 27 days, and this month it hasn't even come yet!

The first day of my last period was July 26th, and I had extreme stomach pain, more than ever before. Now I seem to be getting stomach cramps, but I haven't gotten my period, and assuming I was still on a 24 day cycle, I am about 6 days left.

I'm not sure what's going on, I doubt it could be pregnancy because the last time I had sex with my fiance was July 9th, and after that I had my period. Now it's not coming and I'm a bit worried.

Any ideas?

Thanks.