Hello Lybrate user, there are various reasons for watery semen and low sperm count, it can be intoxication, alcohol, excessive masturbation or many other reasons. These all reasons causes blockages in veins of penis, so penis does not get enough hardness and due to low or nil sperm count you will never become father in future there should be 60% to 70% motility of sperm for being a father. Please consult a good doctor/sexologist, who can diagnose you first and treat you according to your problem.in medical science, no disease can be cured without a diagnosis. You can contact us anytime in case of any query you can consult me on private chat.