Breast Cancer pin

This is what I managed to work on yesterday once we finally got home had dinner and after I spent some time with John playing our mmo (massively multiplayer online). I changed the pattern of it just a little bit and i've only got a couple rows of white left to fill in. Now the question is... Should I backstitch? The pattern does not call for backstitch. But i'm just not certain it has enough pop as a pin. Decisions decisions.