help identifying a painting?

[M]

I can only describe it as best as I can.. I can't find a picture because I don't know the name or artist.
It's a round painiting of the Virgin Mary holding a pretty chubby Jesus on her lap. Mary is on the left, Jesus in the middle, and another young boy on the right.
I don't know much about art so I can't really tell you exactly what style or period it's from... it is quite realistic though.
It's actually in my room. We are renting a summer house from my mom's friend and then I saw the same painting on an episode of desperate housewives