So my period last month and this month has been 21 days late before that I was pretty regular if I was late it was only 3 days max . I tested around the time my period was due regularly and then waited till 15days late to start testing again the last test I took was Sunday morning and it was negative. I was using clinical guard strips which people don’t usually get positives till they are actually late now I’m going on 22 days late so technically 1 day late if my period was due the same time it came last month , should I wait a week or go ahead and test tomorrow with FRER ????