I don't think that it's all that unusual for them not to be rolling at 7 months, although sometimes it feels like that when you read/hear other people telling their stories about how much their kids are getting around. One of Liam's friends, who was born the same day, so he's 9 months & a bit, doesn't roll, and can't pull himself up to sitting from lying down, but he's a tall boy, so maybe that has something to do with it. also, one of the babies in my MG didn't roll, and wouldn't sit herself up until 10 months, when she spent a few days rocking on all fours and then started crawling everywhere. So I think that they all get there, just in there own time. Also, my niece, hated tummy time with a vengeance (screamed), and skipped crawling altogether in favour of the bum scoot. She was slower to walk than lots of kids (18 months), but she's now perfectly mobile, and even with the bum scoot, she could always get to where she wanted to get.

Having said that, when I was worried about Liam's lack of "progress" in the rolling stakes (around 6 months), I spent quite a bit of time on the floor with him, often with a rolled up towel underneath his chest to support him, just keeping him happy while he was on his front. I would only do it for 2-3 minutes at a time to start with, unless he really objected, but I did it a few times a day with him. I also did what one of the other girls above suggested & kind of showed him how to roll by rolling him onto his side & supporting his back so that the only way to go was onto his tummy. Not sure if these things had any impact, or whether he was going to co-ordinate it anyway, but now he doesn't stop moving. So I sometimes kind of envy those people who have babies where they left them, cos mine could be anywhere.....the grass is always greener