DS is 18 weeks, pretty big (16lbish) and very, very wriggly! He is currently in Bugaboo pram with carrycot but really seems to be outgrowing it - if he's awake then he wriggles like mad, tries to roll over, and gets his feet over the side!
I think he might prefer being in the stroller attachment so he can look out, but the instructions say it's only for babies over 6 months. He can hold his head up fine but can't sit up unsupported. I don't want to damage his spine if he's not going to get enough support in it, but does he really still need to be flat on his back? Opinions welcomed...