My gf wants to have a natural baby

len

I got this feeling of jealous with that guy she picked to get a baby. (Coz we know that i cant give it to my gf lol) The guy doesn't know much about that we want having baby with him and he doesnt know that we're still together and leaving him after my gf got pregnant but sometimes i feel weird that i know everything (sex, conceiving). We were trying this for 2 months. (And if the guy cant get him pregnant after 3 months of trying in her fertile window. She will breakup with that guy) So what alternative way not to think or feel that my gf fall for that guy? (LOL) seriously i feel odd, i cant explain maybe leaving me but i know she doesnt. Coz she telling me everyday that she loves me and doesnt love the guy and doing that just for a baby. :)