MIRENA? arghhhh... Can it cause menopause to begin prematurely?

I am 34 years old. I had Mirena inserted 1 year ago. I was perfectly fine using Nuva Ring, but thought it would be nice to have it inserted & be able to forget about it for 5 years. After 6 mos of it, I had it removed b/c I was losing my hair & my hormones completely out of wack. Now, 6 mos. later I still have had no period & the last few days I have been extremely irritable. I thought I was about to start, but my gyno did an ultrasound & said there was no lining there to shed & that I was not about to start my period. What is the likelihood that I am beginning menopause?