My youngest German Shepherd (now spayed thankfully) hadn't read the text books either, she left large pools on the floor and then dripped everywhere, if the police had come in they would have thought someone had been brutally murdered!!! I kid you not. Every bitch is different but do keep the vet informed if you are in any way concerned, is she eating and drinking normally? and does she seem happy? if so then she is probably absolutely fine and this is probably normal 'for her'.
HAPPY MOPPING!!