Okay so people are telling me not to do cut-off cause ph can spike at any time. Does it really matter what the VJ ph is after the 4 hours??? After the 4 hours, the sperm are already in the waiting zone. Will putting something in the vJ affect the CM that is in the cervix and by the sperm?? I am just REALLY scared that if its that important to keep your ph down during cut-off, that my ph will spike and I wont even know.