1st ultrasound tomorrow and feeling super nervous!

Jessica • 29 y.o living in NY married to my amazing hubby on 6/7/14.
I have my 1st ultrasound tomorrow. I will be one day shy of 7 weeks. They will look for sac, embryo and heart beat. Also do physical exam, etc. Is it normal to feel this way because I am super super nervous! Need some prayers and strong reassurance please!