I'm 12w pregnant, and DD is nearly 19 months. She likes to use me as a climbing frame; get into our bed and scramble all over me etc, and inevitably I get feet, elbows, knees etc thrust fairly forcefully at the (invisible, as yet!) bump. I know the baby's pretty well cocooned in there but it worries me a bit - reassurance that a marauding big sister isn't going to do it any damage please!