Okay so it sounds like it could be Egg Yolk Peritonitis which would cause the Ascites fluid, however draining it can introduce bacteria into her abdomen if the syringe is not sterilised. It's also strange that you were unable to get any fluid out and instead got blood - perhaps you stuck it in too far? If it is EYP then you can get her a suprelorin implant which, after about a week or two, will cause her to stop producing eggs for around 4-6months, after which you may have to replace it, depending on how she is acting. However this implant is very expensive and the last one I used cost me £200.