Ok, so this month's OPK test were different from the previous months so I need a little advice from my glow experts! Friday night's test (CD17) is very close from being positive but not quite (can't really tell in photo) then on Saturday (CD18) it lightens back up...so is it safe to say between the two test was my LH surge.?? Usually I can get two days of full positive test but I guess not this month? We BD on Thursday before leaving for Vacation with my parents Friday morning... so fx'd.