@Caroline how is tummy time going to flatten the spot? I’m being told to put her on her back
Do both, her head will round back out on its own over time. I'm not a doctor, and I don't know what ger head looks like, so definitely talk to her doctor about it too so you can make sure it doesn't need any intervention. But tummy time and trying to lay her on her back will help it even back out
My first was like that. Just try to do more tummy time when she's awake and babywear when you can (that counts as tummy time). She's got plenty of time for it to round back out.