My 18 day old daughter ends up in her side in her bassinet to sleep. We put her on her back at night and I'll look over at her maybe 10 minutes later and she's on her side. We think this is because she was born breech, so a lot of the time her legs go up in the air and then fall to the side. Is this something I should worry about? The dr didn't seem too concerned when I told him about it.