first round & apt. I'm nervous 😩

Heather β€’ πŸ’™Otto Wayne 9/7/18 πŸ’™πŸ’šOwen David 5/22/20πŸ’š
We have been TTC for two years and have decided to take the next step...This will be my first round of clomid. My apt is on Thursday I will be on cycle day 4, they will do an ultrasound. What are they checking for and what should I expect at my apt?
I really have no idea how this works yet.
Thanks!