Ba-ba and Ma-ma

Yesterday, I heard Audrey say "baba" and later "maba" and I was pretty excited! Today, when she was fussing before she took her nap, I heard her say "mama"!!!!!!!!! I have read enough to know that she isn't actually calling out to me and that the sounds-mama, baba, and dada-are all universal sounds for babies when they first begin to babble. But it still made my heart flutter when I heard her say it!!!