My bloodwork just came back that I’m not vaccinated for measles

I don’t know HOW this happened. My parents vaccinated me for everything (so I thought) when I was a kid. Everything else came back fine and I’m immune but I googled this and it says if I get it during pregnancy I could lose my baby or it could cause severe defects. Of course the vaccine is NOT safe during pregnancy so now I just have to hope I don’t get it. Can someone talk me down? I’m 13 weeks