Is the fast of a wife who gave birth via C-section one week before Ramadan valid if she only broke her fast for 17 days and fasted the rest, and must she make up the days she missed, or fast the entire month?

If a wife verifies her purity from nifas (postpartum bleeding) by one of the two signs of purity (the white discharge or dryness of the area), she is obligated to perform prayer, fasting, and other acts of worship. Her fasting for the remainder of Ramadan is valid, and she only needs to make up the days she missed due to nifas.