My 11yo daughter had her first (kind of) period today. Poor baby was sooo upset and it took me all my strength not to sob with her while I was trying to be reassuring :(
On the plus side once she'd calmed down (cuddles and ice cream) we did have a good sensible chat about periods. She asked some sensible questions which she'd previously been avoiding. I also made sure dh was in the room when we had our chat so she knows it's ok to talk to Dad about this kind of stiff.
So on the whole I guess we're Ok, but I'm sad and unsettled that she's had to go through this at such a young age.