Strictly speaking, the female reproduction system usually starts shutting down in a woman's forties--even earlier. So we'll say until 34 in this case. That's eleven kids and I'd assume you'd want time before each one so... Probably within the next year?
[ He was gonna be good and resistant, but that idea is lost quickly. Instead his hands raise, one going to the small of her back and the other entwining in the waves of her hair. It's way too easy to get lost in kissing her/. ]