The only minor side effects I did have was mild cramping after
the shot, and headaches. Although once I got off depo
that was different. My hair started to fall out, I gained weight, headaches were worse and so on.
This pregnancy happened 2 months after being off birth control completely, and while hubby had a vesectomy. So the only real birth control i think is no sex.....which is damn near impossibale lol.