pregnancy

I was supposed to get my period early this morning and I havent got it yet..Well I've been having alot of discharge which is not normal..After ovulation it usually dries up but it still hasnt I just got more..My breast seem like they got bigger and my nipples got bigger and the outter part has got alot dark then there is little bumps on mu nipple..This is very much not normal..very sick to my stomach..i can smell stuff a mile away it seems like..bad headaches..Can this be pregnacy or what please help me