Cramps & periods

I took a plan b pill about less than 2 months ago and it messed up my period. I had it for 2 weeks and then I was off of it and then I had it for a week and now it's been 25 days since my last period. I'm cramping in my lower stomach but no period yet. I've been cramping for about 3 days and I've got a sweet tooth like I alway do when I'm about to start my period and I'm always emotional. Do you guys still think it's the plan b messing up my system or should it be out of my system already? I'm just really stressing myself out right now 😭😭😭