Her first word!

I was watching Sofia today, and she made a bit of a mess, so I changed her outfit. We were getting re-dressed and like always, she got upset. Then, she starts crying out "mum", "mom" and "Momma". I was in shock. I put her in her highchair since it was dinner time, and since she was so hungry, she did it then too. I don't know if it is possible or not, but I think Sofia just said her first word!