u/Hefty-Ad4523

I am currently six days late and I’m on day 39 of my cycle. My cycle is usually 31 days or 29 days long. I had sex once which was supposed to be 1-2 days before my next period was to start (as per the flo app). I have been having abdominal pain left-sided cramping and just feeling like generally unwell since Friday… Today is Wednesday. I’ce taken three tests which have shown to be negative. I’m just confused. Does anybody explain something like this?