The words she says over and over and over

Well my daughter who will be 23 weeks old tomorrow has been blabbing for a while know and for the most part makes some sounds that at first we thought where words, but now are sure of it.  She is now saying of course the best word in the world MAMA and she has said Dada only a couple times and that is when she is crying go figure.  know she says HI which she loves to do after I give her a bath and she is naked and she will continue to repeat this over and over again.  I think she is actually saying this to her great grandfather because she is looking toward a pic of him.  The best thing is she is saying PAP and it is soooo great because my dad was never around for the two other grand kids who are now 14  and 15 and he is retired he gets to watch her her with my mom and has been working with her to say this.  Now he is a mans men and I have only seen him cry a couple times in my life and one was when I told him he was going to be a grandpa and the other was right when he saw Aubrey for the first time.  My mom secretly told that he teared up when she said this and he heard it.  That is the best.  So we have MAMA DADA HI and PAP I think that is pretty good for her age.