I know that the peds. stress that we should put our babies on their backs to sleep, but there is other research about SIDS and sleeping that says differently. I did my own research and decided to put both of my children on their stomachs to sleep. My little boy is now two and my daughter is 7 months, same as your baby. I put my son on his back at first because the doctors scared me so bad, but once I read up on the subject and tried putting him on his stomach, he slept so much better, and so did I!
Look for a book by Leila Daughtry-Denmark (Dr. Denmark) called "Every Child Deserves a Chance." There is also a book called "Dr. Denmark said it!" that was written by one of her long time patients with like 13 kids or something. Dr. Denmark is a ped. in the Atlanta area who practiced for many decades. She is over 100 now and still living and seeing some patients by appointment. She is no nonsense and isn't swayed by medical fads.
I know that they like to quote statistics about SIDS and the back to sleep program, but it is failed logic, because they can't isolate that one factor. There are many other things that have been changed in the past ten years or so, like removing heavy bedding and toys from baby beds and using tightfitting mattresses and sheets. Also, babies feel like they are falling when they are on their backs, but they feel safe on their stomachs and they even digest their food better this way (according to Dr. Denmark).
I know that my opinions are very controversial, but despite all that, even my pediatrician says just to start your baby on their back and if they roll over it's okay. We can't stop them. And I'm pretty sure that SIDS is most common from 0-6 months, boys, in the winter, so I'd say you're in the clear.