Lack of sex drive?!

I have zero sex drive any more and it's driving me crazy. My hubby was pawing at me for 4 days so I gave in last night, hoping I would get in the mood--what a bust. Not only was I not aroused, I felt sooo awkward and distant and unhappy--I felt used. I dreamed about it all night and woke up super upset with my hubby and my body. How do I get past this?! I just want the sex drive I had 4 years ago!!! TTC has sucked the joy of sex right out of me. ???