Bad smell from vagina? ?

I had my daughter three months ago, and for the past couple months I've had a really bad smell, I talked to my doctor and she did a swab but I'm assuming there was nothing because she never called me. I got my first birth control needle about 2 weeks ago and the smell is starting to get worse, I shower daily, or everyother day depending on if I get the time... I'm not sure if any of this means anything in regards to the smell, but I figure as much info will help get better answers.