Does anyone know for sure that they ovulate right after getting a positive OPK? I am lucky to have ovulation cramps that let me know when ovulation is about to happen. They start a couple days before and increase in intensity. They are the most intense during the short window of me being able to catch a positive on an OPK (positive tests usually only happen within a 10 hour time frame). As soon as my tests are negative again, cramping stops. I know they say ovulation occurs 12-36 hours after a positive test, but I’m convinced that I ovulate sooner than that. Is this even possible?