This is a tough one - b/c I think of a woman's right to do what she wants with her body and all, president set by abortion being legal (this may be way wrong though, since I admittedly am ignorant considering this law). I'd certainly not be in favor of a expectant mother smoking, but don't think you could say she's committing child abuse.
I'd certainly not be in favor of a expectant mother smoking, but don't think you could say she's committing child abuse.