Look at me!!!

Here I am in my Mommy's belly at 32 weeks. I'm already getting used to having my picture taken. Mom says I can't make any weird faces at my next photo shoot in a few weeks. She says the doc wants to look at me to make sure I'm not getting too big for her belly....Mommy hopes my size means I'm going to be a tall boy when I grow up....but, she says the odds are stacked against me. What does that mean?