I got, what i thought was, my period, but I got it 6 days late. I normally have very bad cramping and a heavy flow, the first night i got my period it was a somewhat heavy flow and my cramps were so bad i couldn't get out of bed and i was just laying there crying. after about an hour and a half the cramps went away and i didn't have any more the rest of my period and my flow was unusually light and i also noticed it wasn't really a red blood color is was darker and almost brown, even. i took a test two days before i was regularly supposed to get my period, and when i missed it i took another the day before i did get it and they both came up negative but i'm still slightly skeptical. could i be pregnant? should i test again? any opinions would be helpful.