I'm still wondering if I'm pregnant?

My bf and I had sex on New Years day and it was an expired condom. I took a clear blue pregnancy test this past Saturday it had 1 postive and one negative I took 2 test.I missed my period. I'm 3 days late now. I have alot of cramps now I haven't had any since I first started my period when I was a teenager. I been feeling dizzy and tired too. Plus my discharge lately been milky white sometimes it's clear white in the same day. It doesn't have an odor either. It is alot of discharge. Does anyone know what I should do ?I took some lady vitamins before unless that is messing with my body ? Pleas help ....