Again I am learning all this myself, but it seems to me that the female can experience one lock and be fine, or maybe 10. The female can choose to store the sperm, be it from the first hook-up...4rth etc etc, and then release and use it down the road. So as far as how much time do you have? I think that would be based of glowing, ovulations signs etc, all that good stuff of which there is tons of info on this forum.

so my best guess and someone can correct me if im wrong, she can be gravid from one lock up, just depends on whether she is open to storing or using the sperm.....not sure if this helped.....most start the countdown not on lockups but on the signs the female will go thru as she starts the process