Having a more white blood discharge and she is delayed 2 days is it normal? we had protected sex and we run a pregnancy test twice 17 days after sexual intercourse and she got it all negative what do i need to know?

All women with new, unexplained, or abnormal vaginal discharge or bleeding should be professionally examined, and apparently she has both of these. There are several possible causes, including pregnancy and infection, including STDs. (At your age and depending on your sexual lifestyle and risks, STD may be especially likely.) Your partner needs to see a doctor or clinic soon. Good luck.