Okay..here it goes. I have been with my SO for almost 7 years. We split up for a couple month in 09 i got pregnant by this other guy, told the other guy and gave him the choice to be in babies life or not. I told my SO about the other guy and the baby and he still wanted to get back together. Son is almost 3 and SO has been amazing! Treats son like his own. I haven't seen or heard from other guy since i was 7 weeks pregnant. I'm fine with that because he was always in trouble, drunk, or on drugs. Soo... what I'm wondering is how and when to tell my son about SO not being his biological Father. i don't want to ruin their relationship and i don't want him to hear about it from someone else who is just looking to hurt our family. I know people like that.