Comment please

My boobs lately seem huge & a little bit sore
I felt itchiness down there the other day which never happens
I feel cramping at times even though im not on my period
And my period is late by over a month 
Im breaking out but thts been like that for a minute ... i took plan B 2 months ago got a period a week after taking it but ever since i havent got my period again. Can you guys tell me what this means ?