I'm just popping in to add that after your sim gives birth in the hospital, the birth certificate should be in the mother's personal inventory. That's always where I've found it. :smile:
Also, I agree that the certificate should come no matter whether the sim gives birth at the hospital or not. Hopefully, they'll patch in the capability for it to come in the mail one day. I always feel weird getting the certificate from using the hidden objects cheat, as it doesn't necessarily feel like it's actually the baby's. :lol: I know it's not any different than if I had had the sim have the baby at the hospital, but it'd be nice to get it no matter what.