Hi no the heat wouldnt stop, If she has been mated, but a girl will only stand at about 10 to 15 day into her heat. when the bleeding is looking watery and a pinky colour' and the vulva is swollen and at its softest. I would still phone the vet and explain what happened!! and see what he thinks is the best for you to do!!! Love WendyX Fifi

And Lulu

Good Luck!!