I dont keep auratus, but i just think it would be almost impossible for us to know if she was gravid or not. Vents or other thumbs are easier to definitely say, this girl is gravid or not. She looks plump and possibly gravid but i doubt anyone could be sure one way or the other, unless they were there with past experience with the species. Time will tell, and she looks good thats for sure if not gravid possibly just a chunker. Good luck