Micronor stopping periods?

I’m just finishing my second pack of Micronor (mini pill - progesterone only) and I haven’t gotten my period this month. I am currently 12 days late, but I took a test yesterday morning and it was negative. I was planning on waiting until I hit the 15 days to test again, but I haven’t had any early pregnancy symptoms, except for some really light spotting the day my period was supposed to come. I’m usually really good at take my bc right on time every day, and we still use condoms, so I doubt that I am pregnant.. but that thought is just stuck in the back of my mind.

But I have also been doing my research lol and I guess the progesterone only pills can stop periods altogether in some women. My doctor never told me about that being a possibility, so I’m wondering has anyone else had their period stop while taking micronor?