is it normal for babies to roll at 2 months?

our little girl rolled once during tummy time the other day and we thought it was a fluke but then she did it again and starts rolling when she gets frustrated and wants to go on her back, so its not a fluke, cool huh?
has anyone elses LO rolled early?
she does have good reflexes our midwife told us

My son Liam learnt to fully roll at 3.5mths old and crawled at 5mths old... but my daughter was only 8wks old (2mths old) when she started!! N she didn't stop... She learnt to roll over n over to get around the room by 3.5-4mths old! A week after that she was commando crawling too - Had to double check all baby proofing lol tongue
All babies develop at different rates smile x

DS1 was 8 weeks old when he first rolled over. It was from his tummy to his back and I think it was because he hated tummy time so much and that gave him a lot of motivation. I quickly gave up on tummy time after that because after the first time he figured out how to roll pretty quickly and just refused to stay on his tummy...at least until he was about 12 weeks and learned to roll the other way. Then he didn't care so much!

My dd rolled at 15 weeks and I thought she was so good and had that as my guide post for ds. Well just one 11 weeks he rolled for the first time. Like the v-1990 said, all babies are different....thank goodness!!!