I always had Xrays done and actually have asked the vet about it since i found out humans could not have xrays during pregnancy ... to be honest it has been so long i asked that i do not remember the exact answer
Anyways , we always had Xrays done and it is safe and for us it is mandatory !!! Day 47 to 53 we must and will have an Xray done !!! and that is such a happy day as it is when we find out how many tiny little ones we will be welcoming to this world !
Blessings !
XOXO