Ultrasound measuring 5wks 5 days

Barbara

This ultrasound is from my Ob today. Thought we was 7wks but measuring 5wks 5days. Baby had a flicker and heart beat of 80bpm. They said it was normal.

Went a 1 1/2 weeks ago to a non hospital place and got this ultrasound and they measured me at 5wks 5 days. Big different in pics but I’m confused.

Also anyone know which side the baby is implanted on? Boy? Girl?