First of all, talk to your doctor (specifically your Ob/GYN) about this.There may be something hormonally that is affecting you. When I first got married and was on birth-control (which messes with hormones), I didn't even REALIZE that it was reducing my sex drive. It wasn't until I got off it three years later that I noticed the huge difference and lamented over what I had been missing out on, lol.
Secondly, I highly suggest you consider the help of some...er...sexual aids. You don't have to go into some trashy store anymore. Amazon.com sells all kinds of great products (in the health & personal care section) that come in discrete, brown boxes. So get with your hubby one night and see what interests the both of you. I'm not referring to porno here, just some extra toys made especially for two consenting adults. Hey, I'm a good Christian woman all week long, but I find absolutely NOTHING wrong with some good, man-made help in the bedroom, lol. Especially between a loving, MARRIED couple that only has eyes for each other.
So get online and look up a fun little number called "the magic wand"....if that doesn't wake up your mojo (and have it running laps) then NOTHING will. ;-)