Period on Nora-Be?

Cyd • Wed, Apr 29

I'm still nursing my 10 month old and started Nora-Be (progestin only birth control pill) but it's been 60 days since my last cycle. I took a pregnancy test on day 45 and it was negative. Has anyone else taken this pill and their period stopped? And how do I knew if I become pregnant while on this pill?!