Nervous about Dentist appt.

Im almost 10 weeks pregnant and I have a dentist appointment scheduled for the 9th. I will be getting 5 teeth pulled. I have to be awake for the 4 hour procedure since im pregnant. Im so scared. I have bad anxiety and im probably not going to be able to have anything for it since im pregnant. Still waiting on an answer from my ob though. Any words of reassurance would be greatly appreciated. Any tips to help ease my anxiety during the procedure? Thanks!