It sound like she may be a but curved from growing inside you. My DD was quite curved with her head to one side until I took her to an osteopath who specializes in babies. She's all good now.
Your DD is too young to roll so she 'should' be fine. Is she in a cot, hammock, your bed or a bassinet?

Eta- congratulations :-)
Oh ok ,never heard of that ha
I might get the health nurse to have a looksie . With my DD1 we always just wrapped her so she always was straight on her back , but this time thought would try a few things to see what DD2 likes best .. I ended up just wrapping her last night as I was a bit worried about the laying to the side , I mean she isn't right on her side and it looks like her arm would stop her going right over but just to save me worrying

And thankyou x