Hi Thanks for your query welcome to HCM When men are sexually aroused, pre-cum may be visible as a clear liquid at the tip of the penis. Pre-cum is an alkaline fluid released by the Cowper s glands, which are located at the top of a man s urethra, just below the prostate. Pre-cum helps neutralize the urethra s acidity, protecting sperm that will pass through the urethra during ejaculation.pre cum itself not containing sperm It is possible to become pregnant from a man s pre-ejaculate fluid (pre-cum) under certain circumstances, though the chances are quite low. But in your case remote chances to be pregnant.if you are stil worried then give I pill .to your girlfriend. .headache and fever are not a sign of pregnancy You just consult your GP for headache and fever Take care