Hello I Had My Son September 18th 2015 And Had

Hello I had my son September 18th 2015 and had my tubes tied on sept 19 my 3rd child I'm 27 so everything seemed fine then I started my period Nov 2nd stopped the 7th then came back the 11th and has been ongoing since first it was light bleeding now heavy bleeding with huge clots they said I have an ovarian cyst can that cause so much bleeding? they gave me medroxyprogesterone for 7 days and it didn't do nothing not a thing I'm very worried and sad I have 6 kids in my house I need answers could it be the tubal?