Need to put my mind at ease

So I have maybe gone through 4-5 metal detectors during this pregnant. Whether at the airport or a sporting event. I always tell them I’m pregnant and they say it’s safe. Well last two times after passing through an employee has come up to me and told me I should not have walked through. All the research I have read has said that it is safe and we get as much radiation from everyday things. So my question is have any of you mamas gone through these metal detectors through out your pregnancy and had a healthy baby? Complications at all? I’m just worried now because I’m getting closer to my due date.