So I took a test on the 26th(7days late) and got the faintest if faint positives like couldn’t fully see it till 8 min. I took one this morning (2 days later) and it became positive but vf at like 2-4 min. I got my HCG drawn today am it was 32.9

The thing is by my last period I should be 5 weeks but I think I got pregnant on the 17th as how light my tests were and how low my HCG is. I added a picture of a calculator on google I did that would put me at 3 weeks 4 days anyone have any advice