Am I pregnant or paranoid?I've been having brown discharge for 3 days now I had sex 4 weeks ago & been on depo provera for 3 weeks. I had sex 3 days after I got the shot. My stomach feels hard but idk if I'm bloated or what :S , my period came on the 13th last month so could it be that my period is coming or what ? :S but doesn't the depo shot stops my period :-/ please help