Chest x-ray at 22w pregnant

I have a medical exam coming up and they require me to do a chest x-ray. I will be 22w pregnant at the time of exam and the clinic assured me that protection will be given. Is it safe enough for the baby? Have any moms done an x-ray while they're pregnant? I'm so worried that it could affect my first baby. Tia #firstbaby #pleasehelp #1stimemom