Hi, That sort of endless bleeding is incredibly draining, I hope you are able to get some extra rest and iron while it's an ongoing problem?
There are many types of progesterone and they all have a slightly different effect on each of us, so I expect it's a matter of trial and error to find one that is right for your body and will work with your body to stop the bleeding.
As for oestrogen on sequi HRT. I'd take oestrogen from day 1 of any bleeding, even if the last cycle hadn't got far I'd start a new one because you are trying to sync your cycle to the HRT cycle and while doctors say HRT simply overrides our own cycle, it doesn't for so many women. Even four years post meno, confirmed by TVS, my cycle would kick in whenever given hormones to work with and my post meno cycle is still stronger than the HRT cycle. My bleed always started before the progesterone was finished, so at that point I'd happily ditch the progesterone and call it day one again.
The logic to that is the progesterone is only there to make sure we don't get an unhealthy uterine build up, so while bleeding, it's obviously not buildiing up at all and imo we don't need to poison ourselves further at that point.
I had very heavy bleeding, 200ml in three days was typical, so I tried;
the mirena coil, it stopped my bleeding eventually but caused low mood, out it came & I waited to be post meno for more choice, then
Evorel conti brought back periods that had stopped for over a year naturally, then
Provera made me want to die ASAP, I've never felt so awful physically or mentally, it had no effect on bleeding.
Utrogestan gave me the most painful heartburn/indigestion, no affect on my bleeding.
Cyclogest gave me the familiar instant low mood and made me bleed.
After that I refused to do any more experimenting with their obviously under-researched medicines.
All the above took a huge chunk of my life to test, I couldn't work while testing most of them because they made me so ill, it's not a small undertaking.
The thing that helped me most was Black Cohosh tablets, they are good for night sweats and anxiety imo. Now I'm postmeno it's not a problem, I can get tibolone and vagifem from my GP, they solve everything for me. Some doctors insist you wait to be postmeno for HRT, others don't, mine did. New research indicates starting earlier is better for our health so it might be for financial reasons that women are told to delay starting it.
It could be the mirena is helping and you need more of the same, or it could be, that isn't the right type of progesterone to stop you bleeding and you need something different.
I'm sorry not to offer more hope but you might just need to wait it out, most treatments come with bleeding for the first three months, so it's not easy to know which meds to stick it out with and what isn't so helpful.