My oldest son turns 15 in the next month and he’s still not had any bodily changes, he’s 5ft 1 and whilst I’ve never had a problem with him behavioural-wise, he does seem quite naive and still very happy-go-lucky, which is great he is happy of course, I do worry it lets people take advantage of him easily. He’s starting to ask me questions and is worrying about puberty and being honest I am a bit secretly too. I’m a single mum and I have another son who’s 12 who also hasn’t yet but that’s to be expected from what I’ve read. I didn’t get my period until I was roughly 13 which seemed later so could it be hereditary?