If she knew the whole time but I didn't find out until later, then I'd leave her.
If we both found out later that she couldn't have children it'd be INCREDIBLY fukked up to leave her over it. But you still wanna hvae kids though, so I can't completely hate on someone to leave her.
The happy medium is to find some jump off to be your baby mama, but that wouldn't really be the best solution either.
Damn.