So my baby girl is just over 9 weeks old. Today, she was sitting on the couch and fell over onto her side. When I picked her up, I put her on her tummy on the couch. All of a sudden, she rolled over onto her back! I thought it was a fool roll, so I laid her on her tummy again, and she rolled over yet again a few seconds later. Is this normal for a 9 week old baby? Or is she just that much ahead of the game? She has been holding her head up since 3 weeks, and she holds it very steady now. Plus, she loves to bounce herself on my lap when I hold her under her arms.