Is The Discharge Of Milk In The Breast A Side Effect Of Depo Shot?

im on the depo shot for almost 3mths now.. and i am seeing millk leakin out my bresbreast and i took a pregii test n it came out negative i took about 10 and the were all the same n i then took a blood test and it came negative.. i feel weak at times an bubbly feelings in my tummy.. could this be the depo side effect?