I have a 2 month old who I have been cradling in my wrap but he now seems to want to stretch his legs out more. At what age can I have him up right with his legs either side of my body. I seem to remember when researching this for my first born that there is a concern about damaging their hips if you open them up too early when carrying them. I also have a mai tei which I haven;t usded with him yet ( I used it more as a back carrier for my first born) but may use it to carry on the front. At this age could I have his legs daggling out either side? Hope this makes sense to someone. Thanks