No sperm during s3x

My problem is non release of sperm even after protracted s3xual activity. Kindly advise me on what to do about this. I am a 30 year old bachelor.

Steve  (by SMS)

Non-release of sperm during s3x could be due to lack of production of sperm from the testes or a blockage in the transmission of sperm from the testes to the urethra. In order to unravel the problem, you will need to see a specialist surgeon (Urologist) at the nearest teaching or Specialist hospital to you.