Dont be nervous, it's very, very fun!! They'll just check all of babies organs make sure everything looks good and is functioning properly, it's actually a big stress reliever to see and know everything is going good. I was getting a little anxious and just had my 34 week ultrasound and everything looks great on her, so I can relax and enjoy the rest of my pregnancy!
i know but i dont want my baby missing organs or anything u know u hear stories of only one kidney etc...
Lol do not worry i was same as well.. i was actually so nervous that i was sure baby is not alive (i know stupid).. i kept watching other ladies u/s on youtube and made sure i know where heart is... and as soon as tech started u/s i saw heart flickering after that i wasnt even bothered. lol to be honest i had no idea what will happen but i just wanted baby to be alive... everything went fine i was exactly 20+2 days... my lil boy was so active...
its ok to feel nervous but stress your self over it.. thats just you being caring mother.. =) best of luck with your scan and i am sure everything will be fine.. just take care of your self.. stay calm and leave it on God..