Hi Jorainbow
I have a Mirena coil and my GP told me all they can do is presume. A blood test showed I had an FSH level of 70 and they said because it was so high I was probably post menopause but couldn't be 100% positive. I didn't have a period for 4 years. I've recently had a new one fitted and haven't had any bleeding with this one.
Sorry I can't give you a definite answer x