I'm in a long distance relationship with my SO and we've been together for 2 years... He visits every month in August he visited at the very beginning of the month right after I had my period. We had sex (like we always do) with a condom and that's it ... In the middle of August I got my period but it was very light and very different. I didn't think much of it. But this month he came down on the 25th and I still haven't had my period. I took two pregnancy test which were both negative. I just don't know what to think since its been so weird lately.