Need opinions!

Callie

Backstory my last period was DEC 21st. I had a HSG test on Jan 3rd and got a positive ovulation test Jan 11th. Then got a positive pregnancy test Jan 25th. The doctor keeps trying to tell me I am 6 weeks 3 days and I don’t think I am that far along. Had a ultrasound today and it was just a sac with nothing in it. Maybe I’m grasping at straws but I’m hoping I’m just to early to see anything. And that I ovulated late. What do you ladies think?!

Picture is of my ovulation test!