WHat is this"??? SEmens with urine?

IT IS Happening for 2 months ...sometimes after urination i feel that im not completly did it....and i feel that some urine is still there in my penius... and when i applied pressure,as usuall i applied during urination..... i fell a jurk!!!! and sperm or semen like,sticky white fluid comes out from my penius...it is vey small in quantity..but it happens each day but one time only.....SO its normal or what??/ AND FOR INFO ...IM NOT MASTERBAITING FOR 3 MONTHS!!!! What is the reson??