Interpreting three year olds

Abby came up to me yesterday and hugged me tight. I was so touched by her affection, until she said "Mommy, you're a great big mommy." I'm really hoping for the best meaning of this statement, but given the fact that I just had a baby, I'm not sure what she was really trying to say. I'm taking it to mean, "Mommy, you're a wonderful, grown-up mommy," instead of "Mommy, you're a huge gigantic mommy." With three year olds, you just never know.