Hi, I’ve had a mirena for 18 years ,long before meno kicked in. They take a few months for your body to settle down, you may get spotting/very light or irregular bleeding in first few months, I’ve never noticed any other side effects with Mirena. I’m using patches and although I felt some improvement in a couple of weeks the doctor said some symptoms will take 3 months to go. However there is always the possibility that you need a higher dose than you’re getting or you’re not absorbing the product. I would speak to your doctor if you’re not sure. I’ve not used the gel so I can’t comment on that. I’ve had to increase my dosage of patches as time went on as I guess oestrogen levels in body drop. My GP tried his best but a referral to a menopause specialist was much more helpful and I wish I’d asked for that sooner. Good luck