My 7 month old HATES being on her tummy, she rolled over at about 4 months and back again but doesn't seem interested in doing it anymore. She sits up fine and reaches out for toys so I'm not overly concerned but I feel like she won't crawl if she's never on her tummy. Please tell me someone else has gone through this? Any ideas on how I can help her crawling and enjoying being on her tummy (I've tried playing with her, being on her level and having different toys to play with)?