C.M.
No worries on this one. She's young. I don't think mine even rolled over until lots later.
As far as sleeping, the docs say that if she's strong enough to roll over, she'll be fine. When a mom on this site asked about tummy sleeping, you should have seen the response. Everyone came out of the woodwork to admit their babies were tummy sleepers. It's more common than you think, although we're shamed into hiding it.
Have fun, I loved that first year.