My two have ben brought up to know everything about their"magic,amazing"body.
Right from explaining how scabs heal on your knee to protect against germs, as little ones, to the monthly(ish)cycle for teenagers.Theres nothing i wont discuss,(just explained to dd1 about my mooncup ).
My mum was the opposite, so I guess I dont want them to grow up thinking the body is "dirty" or to be hidden.Wierd or painful things are acknowledged and solutions found if necessary.
By-the-way, I learnt about signs of ovulation ,not from home ,or school, but from my parish priest,who was doing a natural family planning course in the late 70's and whose straight talking showed me an honest inteligent kind approach was the way to go.