GET HER OFF OF THE SHOT!!!
There's a bajillion options for birth control out there, the patch in all its various forms, the ring, an IUD- get her to her doctor pronto!! Sit down with her, and make the time to have a very long, very heartfelt conversation about how your sex life is making you feel. Tell her that you want to be intimate with her more often, because you love her, everything about her, and you want to share yourself with her in every way (you feel this way, don't you?). Tell her you're there for her, and that you are concerned for her state of mind (do NOT say her sex drive here) because you see that the shot is affecting what's going on in her head. I know that when I was on BC, not only did I not want to have sex, but I honestly thought it was normal for me to not want to have sex. And you know what? IT'S NOT THAT NORMAL!! (I'm not saying low libido isn't normal in some people, just that she really likes having sex when you do have it- which indicates to me that her BC is pushing sex out of her mind in the everyday situations she's in- like it did to me.)
Think about it dude- you wanna marry this girl, you love her, you have the ring. Do you REALLY want to only be having sex 1-2 times a month? Don't answer from your dick, but from your heart- how would you feel, on an intimate and personal level, if you only got the chance to sexually connect with your wife once a fortnight? PLEASE PLEASE PLEASE PLEASE talk to her, tell her how you feel, and ask her if she'd consider other options for BC- and that you're there for her no matter what.
I know TheProf was having issues with this a while back, might wanna PM him, and I've been through this before, so feel free to PM or IM me if you wanna talk about it.
