I'm suppose to start my period today but there is nothing. Should I take a home pregnancy test today? For the pass three days I've been nauseous, sore breast, peeing a lot lately, and I have been vomiting as well. Also 3 days ago I had sex I started to bleed lightly thought I started but than nothing and still no period. I'm so confused. We had sex 2 days before highest day of ovulation. What should I do test now or wait another couple days?