I Had A Kid In December And Was On The

I had a kid in December and was on the Depo but didnt realize i was 3 weeks late. I also have cysts growing inside but ive also started leaking colostrum again as i found this weird because i havent had that clear liquid since he was born wondering what this could mean also my breasts are way tender and hes been refusing my milk.. Hes only 5 months on thursday what could this be?