My SO and i get home from work and either do it unexpectedly, or dont do it at all. Last month i tried using preseed AFTER, and obviously it didnt work. The instructions say 15 minutes before, but i know thats so you can warm it up.... how long is too long before? Like if i insert it right when we get home or when we are about to relax, is it pointless if it happens like a half hour, hour, or couple hours after? If i stay seated?