yeah but technically that wouldnt be considered pre cum then. granted there could still be some sperm left in the shaft in a situation like gymgirl described, but how long can they really survive in the shaft of the penis. precum is the very viscous very clear fluid that comes out of the penis before men ejaculate, if it has white in it then there could be some seamen left in the shaft from a previous ejulation earlier in the day. also there is a reason when men ejaculate that they shoot out millions and millions of sperm. the womans body kills many of them and manty others never make it to the egg. i wish i could actually see some real test results on pre cum and the potential risks of preganncy.