Sore breast and cramping straight after “period”

So I started bleeding quite light 2 weeks ago today which would be a day before my cycle would have been due. The period was very light with no clots like it would usually, fast forward to last week (bang on 7days from the first day I bled) I had sore breasts, they haven’t stopped hurting, the back end of last week I started having mild on and off cramps (like what I would have a couple days before I would come on my period) fast forward to today, it’s been 2 weeks since my period and I’m still cramping, still have sore breasts, breast look bigger. I’m really confused as to what this could be because I am not due my next cycle until the backend of next week and this has been happening from a week after my period (which isn’t normal for me)

Do you know what this could be?

Has anyone had something similar and found out what it was?