How many weeks would I be if I got pregnant a day before my period?

ccccxx

I had a positive pregnancy test August 9th but I had what seemed like a period on July 10th.Im wondering let's say I got pregnant July 9th and the period I thought I had was implantation then how far a long would I be? I'm sure you guys are wondering why I think I possibly got press dag before my last period and it's just I did have sex after my period in July but not as much so I'm curious.