I'm 21 weeks and 3 days. Last Friday the doctor told me i had a gene mutation. I went to get tests done for cystic fibroris, spina bifida, and down syndrome but no results yet. I'm really scared. Has anyone else had a gene mutation? I'm not really sure what could go wrong but the doctor seemed really worried and wanted me to get the tests done asap, which i did. I just don't know what's going to happen.