J.A.
I actually feel it is good that you talk to her about it. My 2 1/2 year old noticed mine about that age. Now she knows it is completely normal and she wants to get me the tampon out of the cabinet! She just knows it is something that comes every month, and when she is older she will have to worry about it, but for now it is only for grown ups. I just feel like talking about those kind of things (within 2 year old reason) is beneficial to them, and opens up lines of communication to other embarrasing topics.