Thanks for the advice. It isn't a smelly discharge at all, so maybe it isn't that, but she is getting dropped off first thing in the morning tomorrow for tests, bloodwork etc., whatever they need to do to determine the cause and the solution. She has been through so much and I hate to leave her, but hopefully she knows it is being done for her own good. They will be just about closing up when I get out of work and get home, her vet didn't think it was an emergency since all her other signs are good at the moment and where if it is Pyometra and she has the discharge at least it is "open" which is the better of the 2 alternatives. He felt that she would be OK until morning. I won't bring her to the emergency vet again, they didn't help me when this problem initially occured.