No rolling yet

Melina still hasn't rolled over on her own. It's strange, because she is very advanced in other areas. She's been holding her head up since she was about 1 month old, and has been standing for 2 months. Now she briefly can sit up unsupported before flopping over onto her side, but she still has yet to turn over. I wonder if it's because I don't give her enough tummy time, or maybe because we're still swaddling her at night? She sleeps so much better swaddled up. When she's in our bed it's impossible to sleep with her if she's not swaddled, due to flailing limbs. She doesn't really like to be on her tummy, though she's definitely getting better at it. After a few minutes of looking and grabbing at the rug, she starts to cry; she doesn't show any interest in (or awareness of) turning over by herself. Oh well. I guess she'll figure it out eventually...