when you put them down for bed or when to sleep every night switch the side they slept on, and 7 weeks is not too late.
Quoting Baby_Avas_Momma:Just don't leave her laying down for long periods on time. :)
Give tummy time and hold her.
Quoting queen_k0302:Holding your baby will round the head.
My dd has what is referred to as preterm baby head. We are doing band therapy.
If you are worried ask her pedi.