Questions

Got my positive OPK today, had EWCM while I was in the shower. Now I’m having some cramping on my right bows side. Can’t have sex until like 7:30-8pm. It’s only 5:21pm now. Will I miss it or should I be ok until then? *edit to add should I use preseed tonight? Thanks guys! We didn’t use preseed, but we will do it in the morning/night & day after also! Should I still use OPK until a few days later?