First ultrasound everything great!

Bridget • 37 pregnant for the first time. Australian/british living in Spain. Aiming for a healthy natural pregnancy.
Today i had my first ultrasound and got the results of my blood screens back. All is normal, very low risk and healthy. The Dr said I measured 1 week ahead of the estimated date, so im now 13 weeks. I didnt realise how hard they press! It was quite uncomfortable and i could feel tge heat. now my stomach still feels warmer. Has anyone elsecfelt like that?