"extreme caution" is right Things can happen in a really big hurry, especially if it's an experienced male.

I would also say you probably missed, but I would keep an eye on her anyway. We have the luxury of having both males and females. Our boys always let us know as much as a week ahead of time when one of our girls is going to go into season, before there are any signs of the season. Almost more flirting than humping.