This morning during tummy time, S rolled from her front onto her back. She did it 3 times in a couple of minutes so I'd like to think it wasn't a fluke. She's 3wks old this coming Wednesday. What is the milestone? Front to back or back to front? I didn't think I'd be thinking about milestones this soon. At what point do I need to be careful about swaddling/wrapping her up to sleep if she can roll?