K.H.
Hi there. I'm also expecting and my daughter just turned 2 years old on Sunday. She too has been extremely clingy from almost the exact date I found out I was pregnant! She was NEVER clingy before - so it's taken some getting used to. My husband and I absolutely believe she senses that there is another child on the way. I'm not due until the spring and I'm not showing yet so I know it's not my bodily appearance that brought on this behavior. I'm not too concerned about her behavior though. I figure it's best to give her as much time, attention and affection that she wants - knowing that I'll have to share my time when the baby arrives. Hope this helps!