Re: why is my game crashing when giving birth?
@ZP4RKER There are a couple different reasons the game might crash when a sim gives birth. One is bad custom content, especially if it's being assigned to the new baby. Another is the infinite birth loop, a known bug since the beginning of Sims 3. That can be fixed by adding an NRaas mod that we're not allowed to name here. But it starts with a W and can be found on the NRaas site, or you could google "infinite birth loop" and see what you get.
The pregnant sim appearing nude is almost certainly a cc issue as well, although the issue could be the outfit assignment rather than the clothing itself. The solution is to change her outfits manually, which you can do with NRaas MasterController; I'd try this before she goes to give birth again.