Urgent Ultrasound car accident please help

Ri

This may sound like a silly question but does "Need appointment by One date" mean they need a day in advance notice??

I was involved in a car accident March 5, 2019. I dont have a primary doctor or obgyn (only 6 weeks pregnant and just found out) just yet. I need to make sure everything is okay with the baby. Unfortunately urgent care doesn't do ultrasound and the Emergency room is really expensive.

(If I have to go to the ER I will)