Your monthly cycle is odd! In females who ovulate on a monthly cycle, hormone levels change throughout the month because of ovulation, and that's what causes mo

Your monthly cycle is odd! In females who ovulate on a monthly cycle, hormone levels change throughout the month because of ovulation, and that's what causes mood changes (and other stuff too - my wife drops stuff a lot right around ovulation). But if you're taking hormones, aren't they in the form of daily pills or wearable patches? There wouldn't be much variance in hormone levels with HRT, or if there is, there's no mechanism for them to be monthly. What do you think causes your monthly cycle? Edit: sorry, I sorted writing this a while ago while making tea, none of the other responses were there, and now that I've posted it I see a whole bunch of people making similar points. Sorry.