It started out with a missed period in january. Than in febuary i had a period for only a couple hours. I have been experiencing lower back pains some throwing up and i have been eating more lately i sleep a lot and i have been told that i have pcos polly cystic ovarian syndrome i and i have had cycst on my ovaries before. I am sexually active and have had unprotected sex. I have taken two at home pregnancy test and they both say negative and i needed an opinion on what to do because everyone tells me different things so if you could help i would greatly appreciate it.