True, but it is risky. If you can grab a wrist, okay. If you have to go for the neck, you have to be real careful.
I'd much rather you do that, then taser the foetus.
There is NO excuse for tasering the pregnant.
There's more of a rationale for killing the pregnant (because they attempt to kill you) than tasering them, because if you are only escalating the thing to nonviolent force, there are other options.