toning up baby fat

Any help how I can tone up or lose weight on my tummy an hips . Any help is appreciated . I showed a pic of my what. I look like now I just had a baby three months ago .i feel like it looks nasty ..;( so I wanna do something bout it . I already been cutting a lot of soda out of my diet an been on the tredmill every day or every other for 15-20 min . Anything else I could try ? No negative comment please