Breast growing after depo

Hi everyone , so I came off the injection in August and and still waiting for my period something I sort of expected BUT I had a breast reduction 2 years ago so my breasts are about a average size now... I’m shocked because they have now ballooned and are sore, did anyone else experience this ?? could this be a sign I’m going to come on soon I really prefer my boobes smaller so hoping they will reduce in size again soon , thank you for your help in advance xx