M.M.
I have not yet gone through the whole potty training bit but I have heard from a few moms that when the child starts taking off the diaper that is usually a pretty good sign they are ready for potty training...I don't believe that two is too young to start but you are the one with the experience of three children before this one..I just know that my niece was potty training when she was two...but every child is different...I would say stick with the potty training but what do I know I only have one child so far that is 14 months old...:)...good luck.