Newborn rolling on side already!!!!????

So baby girl is a week old (7-1-17) and since being home(7-4-17) she has been rolling to her sides while sleeping when we lay her in her crib with or without swaddling(other 3 didn't roll until 2-3mths or older) it's to the point I'm worried she's gonna roll too much (praying she doesn't) she's my 4th but I co-slept with my others until crawling/walking stage. Does any mama have advice on what to do or has anyone else had rolling babies this early on