I've been having unprotected sex. i had sex 15days after my last period started so i could have been ovulating. but i've been feeling sick to my stomach and my breasts have been tender and i pee alot and i have some pain at my uterus if i press on it. on the 28th day of my cycle i woke up and had bled compleatly through my pj's and onto my sheats. i bleed that day and the next day i didn't bleed at all. i don't know if i had a misscarrage or i could be pregnant or it was just a weird period. if anyone could help me out with this it would be really apperciated. I'm really starting to worry about this. thank you.