Single breast enlargened & minipills

hey ladies, I really need your advice and opinions on this. I am 20 years old. I've been on my birth control pills (minipills) for about over a year now, kinda on and off. I quit taking my pills for a month or two in July or August, then if I can remember correctly started using the same ones again in September or November. The reason I'm telling you about being on the pill that detailed because I thought it might got something to do with it? Anyway, before I started taking my pills again, maybe just a week before I noticed my other breast getting bigger, and since then its only been growing. I've captured some pictures through the months to keep track. I can't feel anything unusual on my breast, no pain whatsoever either. No lumps, doesn't feel hot/warm/infected. No change in my physical energy. I have small rash on my breasts that comes and goes because of my psoriasis, it's in small parts pretty much all over in my body. (The rash isn't located in my nipple area though).

The breast is starting to burst out of my everyday bras so much now it's not comfortable:/ the size difference is now pretty noticeable even through a shirt...

could my minipills be causing this..? I haven't had any changes in my diet or exercise, anything really in my life past this year. Nothing that I could think that would be causing this.