problem mating

Question
My male mounted my female Havanese who is on heat (I believe in estres)They became stuck together. I panicked and tried to pull them apart, after which I read you can cause internal damage by doing this. What should I watch for for symptoms of damage?

Answer
Hi. Watch for bright red blood, this is fresh blood, she may even pass clots. They both may have a tucked up apperance to them, and may be tender around their private areas. The male dog's penis may bleed, make sure that the sheath can go back and then forward again without any pain.