Blisovi fe 1/20 and missed periods?

I'm in my 3rd month of Blisovi fe and I havnt had a period yet, I'm nervous that when I do get it it will be really rough. I took a test last month that said not pregnant but as I get closer to my next period week I'm getting more anxious if it will come or not. is anyone else on this pill? can you tell me your experiences with it? I used to take Minastrin which worked well for me and this is supposed to be a generic of that so im hopeful but nervous