Well exactly like the title says.

I have had no period in about 2 months going on 3 months. The last one I had was like 3 weeks long it felt eternal and I was over it. Pregnancy isn't really in mind because me and my bf are careful. There was an incident about a month ago but honestly I don't think I got pregnant. Every month I get the period symptoms, sore breasts, bloating, cramping and just simply annoyed of everything. I had an IUD for 5 years and ever since I took it off my periods became irregular but I never missed any. Back in 2016 my bf and I had sex and we had an accident, we purchased a plan b and after that my period just went nuts. I feel like the next time it comes around it will be like a murder scene and I don't think I'm ready for that 😩

Anyone know of reasons why this might be happening? I'm 23 years old btw