Hello I am in the same boat (albeit) with utrogestan. It seems that my own cycle overrides the utrogestan every time. I have been on HRT seven months and not had a “withdrawal” bleed yet (ie have bled according to my own cycle). I have spoken to my NHS consultant about this and he said that as long as you have a bleed, that’s OK.
But I do worry about when my periods start to space out more (cycles went very close together for a couple of years and are now getting longer and longer). At some point surely there will be no bleed for several months and then it gets to be a problem …
But then perhaps by then my own cycle will be more feeble and maybe the progesterone will be able to take over properly? Hoping so. I will cross that bridge when I come to it I’ve decided.
Would be interested in what others say about this.