I would bet in a week or so her gravid spot will darken to almost completely black. Then she will be ready in a few days. Sounds like you are on the right track! I fed my fry crushed up flake as well.

Hi meegosh thanks for your answer and also when you said its hard to make out what that right guppy when she is going to give birth well she has a big belly a... she has gravid spots but there like her skin color but darker and yeah I have been feeding my guppy Nutrafin max i put them in a bag and grained it up in to find power and fed them that and guppy flakes.