That picture just looks more than a a bit disgusting. Also looks like she has a good possibility of regurgitating. WHY would you feed her FOUR medium rats? A medium to me is 100g+ a pop, which equals 400+ grams of food. No Ball Python needs that much food, especially if you're thinking she's about to ovulate or is gravid. You'd kill her. I might feed a 6ft, 10lb boa that much.
Snakes that are overweight have a hard time developing follicles or even ovulating. Most times they just reabsorb the follicles. Definitely slow down on the food intake or she's not going to do anything, or she'll end up regurging and there goes money wasted and a hurting snake.