Hi.
I'm sorry to say, I dont think you're looking in the right place if you think you have estrogen dominance - or certainly, don't call it that.
The UK (Be it the NHS or British meno society) don't believe in it.
However, it's commonly known that progesterone is the first hormone to decline and in other countries (think Canada and Europe) it is common place to be put on prog only treatment in peri. Also, progesterone is heralded in those fields for pms. But, ask any UK based 'expert' and it's estrogen all the way. If you look into the work of Katarina Dalton - using natural prog for pmdd.
It's mind boggling. But, it's where we are. I've been down that route myself. I certainly believe in it. I've had plenty of estrogen all the way through my treacherous peri, so HRT makes me worse.
The BHRT clinics (like Marion Gluck) do understand and attempt to treat estrogen dominance. And that's with natural progesterone - usually compounded creams and trouches, but they do use utrogestan too.
For me, unfortunately I don't tolerate natural prog. And I think it's the fluctuations in peri that are causing my awful symptoms. If you tolerate natural progesterone - it's very easy to try progesterone only.
There are Facebook groups deal with estrogen dominance. You could have a look at those.
If you still have your HRT, and it included utrogestan, then you can easily try progesterone only for a while. That'll give you your answer to if it helps or not. You'll know very quickly if you're sensitive to it. Make sure it's natural progesterone, progestins don't act in the same way.
If it does help, you can play with dosage. Access to the bhrt clinics costs a lot. So you're better having a utrogestan trial first. But bear in mind it's quite strong. I can't tolerate 100mg progesterone at all, for example.
The best time to test is day 21 as that'll show your E and your P - which should be over 30 if you ovulated. Appreciate it can be hard to gauge day 21 if your cycle is erratic.
Hope that helps. I hate to see others in a position like this simply because the BMS dont agree it's a thing. It's ridiculous. How can it be a thing in other countries??? Good luck. X