I was the same way when I first got my IUD. (The Mirena) It took my body a while to adjust. Everyone has different effects. Some have very bad experiences and some have great ones. Some still get pregnant... I don't know why people think it's 100% effective.(As to what was said below) I have had times myself when I've thought I should have it removed, but glad I never did, and I'm planning on another after this one expires.
During my mood swings with my hubby I had to take a time out. It sounds silly, but I locked myself in the bathroom, and thought about what I was saying and doing, to see if I had a valid point, or if it was just the hormones. All you can do it really take it one day at a time.
I'm in my last two years of it and my body seems to have bounced back into the "desire" mode. Not sure how your hubby reacts to it, but there were times when I had to force myself to "do it". Normally, I was glad I did it, after things were heated.
Hope this helps you some.