Tinkerbell - do try the Mirena. The Mirena is recommend by many gynaes as a good option even if you struggle with oral or transdermal progesterone. The benefits of the Mirena over other forms of delivery are set out clearly on this site:
http://www.menopausematters.co.uk/to_progestogens.phpNiamh's and Kay50's experiences sound very scary but are very unusual and you may be pleasantly surprised how easy this option is when you take into account the benefits of using as little or as much oestrogen as you like to control all your meno symptoms. Sadly one tends to only hear about those who have had difficulty with the Mirena but many women repeatedly have it fitted over many years with no problems.
Do expect some cramps at first and there is likely to be some bleeding and then spotting for a few weeks but usually the bleeding all stops within 3-6 months - so even if you are peri meno, any erratic or heavy bleeding will be lessened and under control.
As I mentioned before, Utro has not been ideal for me - I got vivid dreams and even woke drenched in sweat on many occasions, so whilst it is hailed as the wonder progesterone it doesn't suit everyone.
Do keep us posted about how you do with the Mirena - I believe there is a high percentage of around 80-90% of women who do very well with it. DG xxxx