How Early is too Early?

From the last post of Purity Pledge, I received some great feedback and some questions. The question that people mostly asked was, "At what age is it appropriate to talk about the "birds and the bees?" Or at what age is it appropriate to have your kids make the pledge?

I am no DR., I am not a shrink, each parent needs to decide that themselves. Here are a few stats though:
--The average age of first sexual experience in the US is 16.5 years. (This is an average so there are younger and older)
--By the age of 19, 70% of teens have had sexual intercourse. (-- not the best odds)
--Most kids hear or learn about sex as early as the 1st grade.

For some reason, kids feel more comfortable talking at school or with their friends about this subject. I want to make the HOME the place for them to get the right information. Here are a few things I have done, and by no means am I perfect but I see the odds and the world we live in so I will give it my best.
1. Give basic age appropriate information.
2. Refer to private parts as their proper names and not as nicknames.
3. Teach that each of them own their private parts and not to let others touch them in inappropriate ways thus helping with sexual predators.
4. Allow and encourage them to ask questions.
5. Make the HOME the place to ask questions.

This is only the beginning. Im trying to weave my way around this crazy job of raising kids!