I decided the quilt definitely needed borders. Most of my quilts get borders. I think it helps to frame the piece. I also heavily pin basted before quilting. Flannel has a tendency to stretch, and I didn't want puckers!
Then I just put the binding on - same fabric as the border - and held the quilt hostage until I could see the baby! (I was really just waiting for the birth so I could put her name on the label.)