Hi i have a couple questions and would like to know what’s going on. I think I’m pregnant but after i thought about somethings don’t make sense. My period is late, my last period was on October 31 and so I decided to just do a pregnancy calculator, and it said I’m 4-5 weeks but then why does all my pregnancy tests I take show very faint lines? Also the last time I had sex was November 17 which is 20 days from today so maybe I’m only 2 weeks. Please help someone explain thanks.