In the month of July I had a period (my period usually last 4 days and VERY heavy and painful). However, in July my period was lighter lasted longer and not painful at all. My boyfriend and I had unprotected sex in the end of september and I was worried that I would be pregnant so three weeks later, no period. I took a pregnancy test and it came back negative, so I waited a week more just Incase. Still no period. So I took another test and again no period. (I was getting period symptoms though, just not bleeding)So I stayed at my boyfriends house the last week in August and we were having sex often and one night we were having sex and when we were finished we noticed that there was blood so I went to the bathroom to examine myself. The blood smelled like my period blood and was the same consistency so I figured it was my period. However when I would put a tampon in, no blood at all would be absorbed. So we continued to have sex that whole week and I would bleed every time but never bleed afterwards or when we weren’t having sex and it lasted for four days. So I assumed it was my period being irregular, so I put it on my calendar, however my period is has just started today, is that just an irregular period? Or something more?