There is a very minimal chance of transmitting HCV sexually, although it is not an STD. I was married when I was diagnosed, and my husband wasn't concerned enough to be tested. We divorced 2 yrs. later, but as far as I know, he never contracted it. I've only had one other partner since then and he was well aware of my HCV status. Again, he wasn't concerned. The one time that it's very possible to contract the virus is if a woman with HCV has sex during her period. However, as David said, it's the responsible thing for your children to make their status known. With the prevalence of STDs these days, it's best to use condoms anyway.