We are having trouble with dd going into her crib at night. She is 11 weeks tomorrow (born 2 weeks early) and as soon as she is on her back in the crib she grunts a lot and flails around and is pulling her knees up until she eventually wakes herself up crying. Any ideas what this could be due to and is there anything we can do to help her? She doesnt necessarily seem in pain but maybe I'm discomfort. I end up having to get her out and have her sleep on me which is not ideal as I'm not able to sleep at night. Thank you