The FSH levels do fluctuate, but your worst number is usually indicative of your ovarian reserve. You’ve mentioned that you haven’t had your period since July. FSH is typically measured on day 2-4 of your cycle. Maybe your measurement was done incorrectly? The FSH level fluctuates within the menstrual cycle so the value that was obtained outside of the cycle window probably isn’t good. You should book an appointment with an RE right away for more tests.
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