rolling over?

[tinderhearted]

Has anyones baby rolled over yet? Logan tries so hard to roll onto his tummy when he is on his back. He gets about 1/2 way there and seems to give up and go back to laying flat on his back.
I expect him to do it anyday now though and I'm getting so excited just thinking about it! He'll be 4 month old in about 2 weeks.