What Causes Vomiting And Bloated Stomach While Using Depo Shots?

hi i have had the depo needle last month though only in the past two weeks i have been feeling very sick (vomitting) and very blotted. my stomach has gotten bigger and im feeling like its very hard to walk as if i am pregnaute i had a test before i had the depo needle which said i wasnt pregnaute but is it possible to be i really feel it