Patient: Iam balu from india i sex with my girl friend for 1 year in 25 times without any safety,condom not having,to any time so my virgin water not allow to my lover inside of porn if sex when water coming time to my penis i get up so the water not send in 25 times iam not having condom only free sex.if my question is if one drop is send my water inside of my lover when my DNA and my lover DNA is same to change after sex and both blood group are same to change?pls tell me doctor and pls