When did I conceive? Is my pregnancy app correct?

AS

Period was August 22nd, had sex end of August all the way up the 7th. Did I conceive on the 4th? That’s when the doctor told me I did and the apps I have are saying the 5th as well. Am I really 5 weeks and 2 days like its saying? And does that mean I got pregnant in the period it was saying I was fertile????? How far along am I actually ? And when did I make this baby? I don’t wanna wait for my sono which is a week away. Opinions ladies ? 😁