Mirena Gals - when did you stop getting your period?

Kate • Chicago gal
When I got my IUD in January (7 months ago) I bled lightly pretty much every day for a month or two. Now, I haven't had regulr bleeding at all and am finding it difficult to determine where I'm at in my cycle or if I'm even going to get my period. I've been cramping and all the other PMS signs the last few days but I just don't know if it's normal because I probably won't have a normal period. Any input would be much appreciates!!💕