Xrays first trimester

I just got arm X-rays with my arm down next to my torso, and just found out after I’m 6 weeks. They didn’t put anything over my belly and I’m scared it damaged the embryo. Does anyone know if this can happen? Also they want me to do an mri but even though it’s not radiation I can’t imagine that’s the best thing for my baby right? I’m so scared the damage is already done. And I had to take all these medications too. Ugh so nervous!!!