Hi Zar,
Just to say I am peri and on utro 12 days a month, 200. Ever since starting HRT, my “period “ has either not happened at all, or arrives during the utro phase, never after. I tried adjusting the timing of my utro but that just led to the abdominal pains I had when I started returning and my period still arrived on day 8 of utro. It’s not my natural cycle, that was three monthly when I started, and varied as to when I took the utro when I was trying to line them up. So I now just accept that my period starts day 8 if it will, and carry on as normal.
I would say if you are only prescribed 25 tablets every 4 weeks then I would stay on course. As long as your lining is shedding, don’t worry about it.
Hope I don’t add to your confusion xx