to switch or not to switch...

So the question is, should I go ORGANIC or not?  Well I'm in a bit of a panic mode. I have a DAUGHTER!! And well she is going to be seven years old. And well, I was doing some research this weekend and found out that girls are going through puberty a lot earlier now-a-days because of certain hormones in the chicken and milk that we eat and drink.  And then I read that young women on an organic diet develope a lot later in life, like say 12-13 years old, which is what I'm used to. This one is going to be a short blog, but really... I need your help on what I should do to avoid the inevitable (Ashlyn going through puberty at seven... I want to CRY!!) If the first stages of puberty are being noticed NOW, like RIGHT NOW, do you think its too late to change up the diet so that she isn't becoming a little lady at the age of seven and a half or eight years old? If you or anyone you know have any experience with ORGANIC FOODS, can you please fill me in.