Need Advice.

Jodeci

I'm 8 weeks pregnant my test came in dark the beginning of October now its fainting when I take them. I've had bleeding a few weeks ago OB said it could be from my bladder infection and uti. They dont know if I'm pregnant or not. My last ultrasound said saw 2 twins stomach ultrasound but vaginal saw nothing. I go back on the 7th. What should I do?