Not immune to rubella

I just found out I'm not immune to rubella. My vaccine as a child didn't take. I've already started infertility treatments and don't want to stop to get vaccinated again. (They said I'd have to wait 3 months before TTC again) Has anyone else dealt with this or have any helpful advice? I'm really struggling with what to do and I'm supposed to start Clomid tomorrow! Feeling overwhelmed.