Hi Ilona, I am sorry to hear you are going through this. I experience prolonged spotting a few years ago and my gyno couldn’t find an answer– she even thought I had PCOS for a while. It turns out the acne medication I started taking (Spironolactone) can also affect hormone levels and was the direct cause of my prolonged spotting. Don’t rule out investigating any other supplements or medications you may also be taking as well as hormone therapy! Good luck!!