HELP! Haven’t my period AT ALL this month!

I had my period in January from the 21st through the 26th. My boyfriend and I had unprotected sex that Saturday, then Sunday (the 27th) we decided it’d be smart for me take a plan b. I actually took an off-brand one because they were out of the name brand. I don’t even remember the name of it i just remember it was a red box. However, it made me bleed an entire extra week after I took it. Since then, I haven’t gotten my period for February! AT ALL! I’m starting to get scared and worry that I’m pregnant but all my friends say I’m fine and it jus messed up my cycle.

I’ve taken plan b before and it usually makes my periods super irregular but I’ve NEVER missed a whole month. And I’m starting to feel weird, my body, and everything. Maybe it’s just weird hormones from the pill, or do you think I’m actually pregnant?! I’m so effing scared. I’ll have to get an abortion if I am.