Started off as expected but last 2 have been completely blank? Instructions say they should get darker and to DTD when the test line is as dark as or darker than the control line.
Had weird periods the last few months (had covid vax but only 4 weeks ago). One cycle was 5 weeks, then the next 3, then 4.5.
Any ideas? Ignorance was bliss, I am now googling early menopause 😫