Hi, My Question Is About Mirena, I Had It Fitted

Hi, my question is about Mirena, i had it fitted in august and felt ok from beginning but in November i started feel very depressed and put on weight more than 1 stone, didn't change my eating, I eat even less now, more healthy. my weight now is the same when I was 9 months pregnant back in April can Mirena cause weight gain that much and that quick?