When getting prenatal medicaid do they count the fetus as '1' member?

No but since she is pregnant she will get medicaid no worries! Just based on the fact they have no insurance. That's what medicaid is for woman and children. They have different kinds and she will get it, so don't stress. Even if her income is to high they have programs called "spend down" you can google it. This gives her insurance for a small fee every month. It's way cheap, so either way she will get insurance.