I'm sure it was something else but...
I was lying on my back one evening before bed and placed a firm hand on my abdomen, where the sonographer had placed the ultrasound scanning tool a week before at my dating scan. I thought I felt so etching rolling around! Or, perhaps a large lump of food/poop passing through lower intestines. I placed my hand on my husbands lower abdomen to compare and I couldn't feel the same rolling motion. It was like a little lumpy ball rolling over, so I wondered if I was being bonkers in thinking it might be the baby?