I take 200mg of utrogestan every night, no break. Continuous.
I am dealing with the after-effects of taking estrogen at the moment - heart palpitations at night. This never happened before I took estrogen. I even get a tingly left hand and left leg when I have the palps. Heart beats harder and faster than usual. I'm now at 10 days after stopping all estrogen and it's still happening. (I don't have my low estrogen pre-HRT symptoms back though - because I think my own ovaries have woken up now I've stopped desogestrel and are making my own estrogen again.)
But - if I get that stabilised or if a cardiologist tells me my palps are harmless and okay, I am considering using the utrogestan 200mg just for half the month - a bit like it is used when taking estrogen. That is what Lara Briden describes as cyclic progesterone therapy and also what she recommends in peri anyway, before you need estrogen:
https://www.cemcor.ubc.ca/resources/topics/cyclic-progesterone-therapy I feel that would allow my ovaries to make even more estrogen and support me to keep cycling for as long as possible.
It is slightly risky in terms of endo, but I have done everything recommended to reduce that with supplements, healthy living and eating and exercise and given it now appears I can't have exogenous estrogen, I need to use mine for as long as possible. I can't just shut it all down with progestins and take estrogen patches/gels etc, because it seems that is bad for my heart. I can give it a go, anyway.