How old is your female? Some females bleed very little when they are in heat and some females have silent heats. It is very possible she was in heat and you just did not know it. Also it is not that unusual for a female to tremble some when they are tied. You definitely need to take her to the vet and make some big decisions because it is possible that she was in heat and could get pregnant.
__________________
"Lord grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference." |