I'm so anxious!!

My first OB isn't until October 4! Uggghhhhh ! 
I got my BFP about a week ago it's still so surreal To me . I Want To make sure im developing okay with my little rainbow baby . 
I know stressing doesn't help . I just want a better estimate to how far along I am . My husband says less than a month but I tested 4 days before missed AF and got a BOLD HPT
Any one else as impatient as me 😩😩😩😩