Hi Catherine
I had the Mirena fitted the day before you and am using it with oestrogel, I'm 52 and had problematic bleeding with the last two HRT's which I've tried, so this is my third attempt.
Like you I started a period after Christmas and am still having what I would call spotting, but on the plus side it is getting steadily lighter and some days I don't have any at all. I remember when I started the mini pill years ago, I had a similar thing happen which went on for about 4 months, so I'm hopeful that this will be the same. Glad you feel better in yourself.
DollyD x