You should strip her. A month is long enough for the fry to be free swimming. This is how I strip mine: I put 2" of tank water into a 5gal (or 2.5 gal) bucket. Add the holding fish. Gently grasp her in your left hand, head facing to your right hand. Get a paper clip (use the rounded bent edge, not where the wire is cut) or a plastic spoon turned upside down. Keep the fish in the water, and gently pry open her mouth. Fry should immediately swim out. You can give the mom a little jiggle to coax the fry out. Depending on her size she could have 5-40 babies in there. good luck!