Are there any dental assistant performing X-rays on patients that are pregnant?

I am pregnant and iI just started working on a dental front office

And I notice I have to get up to drop of chart many times during the day the xray station is not a room nor does it have a door I think xray might be 10 feet or 15 away from me is this safe? I am starting to get scared I am 16 weeks at the moment...any advice. ???is there something I can wear???

I will take any advice