Ttc needing advice

Hi! When should I baby dance during my fertile window ? My sperm donor is shipping the donation here & im trying to figure out what day to inseminate.. I was told to inseminate on the last two days.. I’ve been using ovulation strip test for 2 months now but they aren’t really helping me out.. the test have all looked the same very faint or they are defective & not showing a result.. I’ve been tracking my cm as well as eating healthy.