Late ovulation

Hey! So I’m not sure how any of this works let me explain i ovulated LATE my ovulation took place around 23 days ago I was supposed to get my period either the 16th or 20th I got my positive about a week ago and my hcg is around 3005 I’m supposed to be 6 weeks according to the app and my last period but the OB can’t see a baby on the screen could I be WAY earlier than predicted should I mention to the doctor I ovulated late? Or does it not matter