17 months already

I know almost every post is about this, but I can't get over how big my baby is getting. In the last two weeks I have been able to understand him more. He started shaking his head yes and no. Believe it or not, he actually learned yes before no. I was happy to know that this was rare. Also, SOMETIMES he lets me know when he went to the bathroom. He grabs his diaper and when I ask him if he went to the bathroom he shakes his head yes or no. Usually its yes, and he's right, he usually did go. I love him so much!