Wise bombshell... I was on desogestrel for about 8 years after my laparoscopy for endo, with the goal of suppressing the endo. It worked. I did bleed slow brown sludge for what felt like ages but then it stopped finally and I hardly ever bled at all and when I did it was incredibly light. I did several times worry about the low estrogen levels on it but I never got my levels checked. I was on just the one dose of 75mcg, not double dose.
Before desogestrel I had tried to go back to the levonorgestrel POP which is what I'd been on for another 10 years earlier in my life without any problems. But on that one I just bled and bled and bled constantly for months and it really didn't stop. I preferred that one because I thought it shut down my own ovaries less and would leave me with more estrogen as a result. But I couldn't use it. No idea why it worked so well earlier in my life but then I couldn't stop bleeding on it when I went back to it. I really did give it ages, like 8 months or something!!
Gilla, I think I'm not sure why you want to try Zoely rather than oral HRT? (If that's the way you want to go.) I mean, the estrogen in the Zoely isn't high dose and you suspect you will need to take more. Is it just to get access to the progestin? Is that not available as a separate progestin for HRT purposes by itself?
And if you get allergy symptoms, have you investigated histamine intolerance and the work of Dr Tina Peers? Sorry if I've mentioned that to you before...