I bought this larger female normal ball python... She was 1881 grams I bought her this past weekend on the 17th she did not eat when I offered her food... At first I thought well maybe she is not hungry but I she looked swelled tonight so I got thinking what if she was ovulating? Could explain the denying food and swelling here are some pics of her.
Now that you've explained she's being housed with your male until you get her set-up ready - that's a more likely explanation for her denying food.
The stress of a new home combined with the stress of being forced to share living space with another animal is a more likely explanation for her meal refusal.