20 week ultrasound tomorrow....Excited but nervous and concerned too. What to expect at this appointment?

1st things 1st. calm down!!!! lol. i know its hard i was soo scarred and then i went in and we could Only see 2 of the 4 chambers in the heart. and i had to go 2 weeks wondering if my child was going to have to have heart surgery!!! im sure if you had any issues, you would know by now!!! just thin you get to see your beautiful baby and find out what your having!!!! i know thinking of the worse is so much easier and you just want a healthy baby, stress only makes it worse!!! i wish you the best of luck!!!!!!