So I got my IUD Mirena on October 22nd and stopped having my periods in mid December I believe. I don’t bleed at all anymore, I don’t spot or anything( and my question is

How do I tell if I’m still ovulating or not? Should I be concerned about pregnancy or any other issue that may occur? I looked on google and they didn’t say much about how to tell if you’re still ovulating. I also haven’t been able to feel my strings, is that normal for some people or should I get it checked out.

I still get pretty bad cramps once in a while but not daily, it’s been happening on and off for about a week now though, which is more frequent then it’s been before