2 1/2 weeks late

Nichole
Hello all. I'm hoping someone can give me some input. I am 2 1/2 weeks late for my period and am usually always regular. I had a misscarriage in December but have not have a baby yet. I have taken a couple of tests and they were negative. I was nauseous yesterday and have had some pressure on my pelvic area for a while now. I could swear I'm pregnant but can get that positive.