DD1 found out somehow without me LOL She then explianed it to me!! DD2 was told by a teacher before camp last year that some girls may have their periods at camp and would need to pack stuuf JIC- half of yr 5 rushed home with a million questions cause they had no idea what she was talking about LOL. I just explained it to her and that she'd prob be later like her big sister and I. We went to a Relationships Aus. night at school where they covered puberty/sex etc so then we talked from there.