Anyone else have PCOS and have no idea when their actual due date is?

My period tracking app says 9 weeks 2 days

Glow and What to expect says 8 weeks 1 day

I think I am around 6 weeks.

My cycles average 44 days. Some have been as long as 66 days. I had some spotting on 7/26 could have been from ovulation or implantation. My predicted ovulation date on my app was the 26th.

I also stared using Ovasitol in June and of course this could have changed everything.

My first appt is on 9/4 but I dont think I will be having a scan. I need a dating scan.