New to opks

Is it normal for from opks to be this consistent? Is it worth it to keep testing? Only testing really because I recently started taking cyclic progesterone and read that should take it after get a peak opk, otherwise prescribed to take every 4-8 weeks. Also been cramping for the past 2-3 days and spotting on and off since my last period which I also don’t know if that’s normal with taking progesterone