Olivia rolled over!

Olivia was just doing tummy time, and she rolled onto her back! Twice in a row! She tries to roll onto her belly when she's on her back. She'll get rocking from side-to-side, gets up almost all on her arm, and falls back onto her back. She's getting there. I know that soon she'll be rolling all the time, and then she'll start crawling. She's quite the mover.