We both have been tested for the most commonly STD's and we are both clean. So diseases are not the issue here. He seems to ejaculate loose watery sperm. (As if shooting blanks). A few times I have noticed jelly like substances in his sperm, but after awhile that went away and now it's loose and watery after seconds of him ejaculating. What does this mean? Does this mean later in the future he can't have kids. Should he be tested for prostate cancer? He is 27 years old. We been together for 6 years. We are both trying for a child. After sexual relations we would lay still for awhile so the semen could travel for conception but as soon as I get up and head to the bathroom it runs down my leg or it comes out in the toilet. I know this is graphic and im sorry but I needed to describe this situation. Please help!!!!