hi i had my period then 1 week after i started bleeding again but way lighter then normal following week i started getting very tender nipples when i lie on my stomach it feels like there being twisted and burning also im having cramps on my right side feels like period cramps also iam starting to get lower back pain.. is my systom messed up or am i pregnant. oh i also had unprotected sex day one of my first period and protected sex day 2 of my first period , im hoping to be pregnant :-D ! when can i take a HPT ??? im going crazy i wanna know !! :-(