I have the coil in and i dont have periods

Patient: I have the coil in and i dont have periods with it but i have recently noticed that i have put on weight i have sore breasts and an increased appitite .i have done a number of prrgnancy tests with negative results. Y would i be having these symptoms please.

Symptoms: Sore breast espically around nipples. Swollen belly . Increased appitite and put on weigh

Doctor: