I started depo about a month and a half ago and we waited a month like we were told until we did it unprotected. But I get cramps only on the left side and super bloated, I know you gain weight but I don't know it just is weird I've been getting nauseated so much easier the past couple weeks. I was suppose to start my period the other day and didn't but I also know some people don't have periods on depo.