feeding and NuvaRing...?

I was wondering how your experience was using NuvaRing while feeding? Did your milk supply decrease? Also, was it hard to put in and did it come out during and if so does anyone know if you can get pregnant if it does dislodge during? I have never used it before and am considering it as an option for birth control - I need something very dependable so please tell me your experiences with it! Thank you!