Muscle separation

I am 5 weeks post partum and I checked to see how separated my muscles are because I am dying to work out again and I noticed that the further up I bring my head (while laying down with knees bent and feet flat on the ground) my muscles are only 1 finger tip apart, but if I don't bend it all the way it's 3 fingers. So do I believe that they're only 1 finger tip apart? Or what? I'm lost