so im irregular, my periods are heavy though and lasts for about 7 days and i get awful cramps and just am in a bad mood all of the time. my boyfriend and i had unprotected sex 2 times and he pulled out both times. i believe i was ovulating because i took a test and it said yes and then the next day it said no. about 2 weeks later i went to the bathroom and i had light spotting, it then got a little heavier but not as heavy as my usual periods. This period i only had to use one pad a day, i only bled on the pad and barley any on the toilet paper and NO blood in the toilet it only lasted for about 5 days. I took a pregnancy test in the middle of that "weird period" and it came out negative. yesterday about 3 days after the "period" i started to get dull cramps in my lower stomach towards my lady parts. i notice this is more noticeable when i lay on my stomach. what could this be? thanks for the help!(: