We have discovered that Sweet Pea really likes to lay on her tummy and squirm around. She also takes good naps on her belly! She is asleep right now on a blanket on the ottoman laying on her belly and has been asleep for a good while! And just LOOK at that smile...I am so glad I had my camera out and was able to get it - just melts my heart!!!
PS: I only let her sleep on her tummy when I am able to be nearby. At night she still sleeps on her back :)