13 yrd old DS is small for his age. Amongst the smallest in the groups of boys I see at school - and he says he's amongst the smallest. Dad was a late developer, so assumed it would follow that trajectory, even though I'm concerned.
But he's got quite a lot of dark hair on his genitals already (told to me by DH) - although not much genital development, but still indicating puberty is starting. Should I be worried he's not had anything like a growth spurt? Is this all normal or out of synch?