When you come off, test your LH as normal (if you do) and start again. If it’s a chemical it may have “disappeared” by then. Square one can be refreshing.I tested in the seven days that I was late for AF and it was negative but then because I bled, albeit light, I didn't bother testing and now I'm bleeding quite heavy so not sure if there's any point in testing really. Thank you for answering
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