Im really confused my girl was mated on day 9,11 and 13 with no problems ,we then kept her away from the stud ,theve been reintroduced today (day 21) and she still standing!,although she is not very swollen behind she is still bleeding, her last litter was bred using a outside stud so i dont know if this would have happened as she was kept well away from our boy . she was mated on the same days though.i didnt allow him to mate her again and have re -seperated them ,has anyone else come across this?

Yes I have a cavalier bitch that stands for the dog up to day 23.

same here got a cavalier bitch still sexy on day 23......and bleeds right the way through...even when she was mated last year and had 4 puppies..