Ultrasound and blood

Des

Went to have my first ultrasound and was only able to see the sac. She said I looked to be right at 5 weeks and everything looked normal for that far along. Decided to do blood work again just to confirm everything was fine since we really have no idea when I conceived. And went up from 1,100 on Thursday to almost 7,000 today! What did they see on your ultrasound at 5 weeks?