WIP Wednesday-baby quilt

I love making baby quilts. They are relatively fast, fun, and simple, and the colors are great! I am working on a new one for an expected arrival in May, so I still have time. I am not sure what exactly the finished product is going to look like because, true to my form, I am not big on patterns.  I guess I'll have to see what it ends up looking like. So far, this is what I have done...

I think there are 15 pinwheels there and another 15 to go in the pile of triangles. Not sure if I will sew all of the triangles together yet; I thought about using some of them to make the border, but we'll see.

I am worried I might need to go get some more fabric (any excuse to go to the quilt shop). I also haven't decided whether I should use fleece or cotton fabric for the backing.  I have time, right?

Can't wait to see everyone's WIP's. I am linking up with Freshly Pieced WIP Wednesday.