Im 19years old and i have been having sex for about 3 to 4 years now... i've never been pregnant and i've never been late on my period... i was suppose to come on my period 2/23 but didnt get it til the day i was suppose to come off my period(yesterday)..at first it was spotting brown with mucus discharge then it started to become very dark red.today its not ass heavy and the cramp are completely gone.... but for the last two weeks my breast have gotten swollen and much bigger my skin has been itching like crazy...ive pasted gas more than i ever have(even after eating cheese)... and im much more tired at work and i go pee like a thousand times a day... my hpt i took said negative but could it be too early to test? should i take a blood test? HELP!!!! its driving me crazy!