First teeth position

[GinaFB]

My LO is 20 weeks and has 4 teeth coming, he has been teething for about 4 weeks. I can see them in his gums the top 2 are where you would expect to see them in the front but at the bottom the teeth are at the sides where you would see molars.

Does this sound like the teeth have not formed correctly in the right place or can other teeth erupt first?

Teeth can come in in any order.
DD cut one bottom middle first then top two fangs. She was like this with 3 teeth for about a month, she had a brilliant smile :)