Hi lydiasmommy and welcome to the board. First it isn't too earlier to think about your game plan and look at the possibilities. Does your DD (darling daughter) go to school now and have you looked into the different programs in your area?
My DD will be turning 4 in another week or so but we still hesitate to test her because she can be very shy with strangers. She is getting better but I still don't know if a test right now would give us a true picture of her abilities. But testing before age 8 is not advisable unless you are looking for entrance into a program such as the DYS or early entrance into Kindergarten or even a possible gifted program. BTW if she doesn't make the cut it doesn't mean that there aren't options for your child. DYS is for the 99.9% child but this doesn't mean a child isn't in the highly gifted range and will still need support and even possible skips during their education career.
