Until recently my toddler (14 months) had four teeth - the two top ones and the two bottom ones at the front. I’ve noticed he now has a fifth tooth coming through at the top but it’s not next to the two front teeth - it’s like his third tooth along if counting from the front, so he’s still not got his second ones. His top two front teeth also have a big gap between them. I’m just a bit concerned as friends’ babies milk teeth seem very uniform and neat, whereas my son’s seem to be coming through quite haphazard with gaps. Should I be worried?