Period with the Mirena

I got my IUD about 7 months ago and I was told I would stop getting a period at 5 months. Month 5 I bled for 3 weeks, it stopped for a week, and then bled for a couple days. Fast forward to now; it's been a while since I've bled and I should definitely have started bleeding by now, but nothing is happening. I took two pregnancy tests and they're both negative so I think my period is finally stopping. I was just wondering if anyone else still gets all their PMS symptoms but none of the blood with their IUD?