I've had unprotected sex in april, 2 days aftr my period. Now, my period is regular but it is late for 1 week now and i've been having cramps in belly for short times this whole month, i haven't had spotting, my belly is bloated and hard and it is unusually uncomfortable. I thought u was pregnant but i took a pregnancy test at home and it came out negative. I have no idea what this is. But to add an info, i have small cysts in both my ovaries diagnosed over 1 year now. Does anyone have an idea? Could i be pregnant? I'm 25 now