My period was lasted 3 days, the first day & half was brown then red blood & the end was brown blood again! Before my period like a week & during my period my boobs & nipples were very sensitive & itchy! I also am having lower back pains very bad & I have been peeing a lot! I have been having a ton of headaches excpecailly in my tempels! Now that my period is over, I am still itchy & still having tons of headaches, and my boobs still hurt off & on! Am I pregnant?