i have had my period since march 3rd, for 17 days now, when it first started it was really dark but not heavy at all. I'm still on it but barely theres hardly any blood, but i my boobs hurt i have no idea why they do. I have taken three pregnancy tests and they all came out negative even the one at planned parenthood. I have gotten dizzy, nauseaous, i have been cramping, and my lower back has been hurting off on and on. i dont think that iam pregnant since the pregnancy tests came back negative but kinda do at the same time cause my boobs hurt and they dont ever hurt past the day i start my period. I dont know any other reason why my boobs would hurt. O and i last had sex on the 21st of Feb. so if i was pregnant the tests would show that i was. I was also on depo but was supposed to go back in jan on the 5th but didnt go then i started my period on the 6th of jan and it lasted pretty much the rest of jan. and then i had no period at all in feb. i was thinking that im all messed up because of the depo but now im not so sure can you please help cause all three pregnancy tests have came back negative and im scared that something else is seriously wrong.