I have a Beco that I used with my DD from the time she was about 6 months old. I'd like to try and use it with my DS (11 days old), but I'm hesitant b/c he's still so little. Anyone had success with it? Did you put their legs out on either side or put them in froggy legged? I've also heard of one leg in, one leg out. Anyone try that? Thanks!