Flightless, My wife and I have a very similar story. You have received some excellent suggestions and advice from others but I would like to add a couple of thoughts.
First, you have a much bigger effect on your situation than you may think. My wife was also experienced to my inexperience and shared entirely too much. I knew more about her previous experiences than anyone should know about their spouse. This was a huge wedge between us. If this is the case with you and you're DH then you owe it to your husband to be extra patient with him, even if the sharing was an effort to start your marriage honestly or even if he asked. God intended both spouses to come to the marriage bed inexperienced, He knew the harm better than we could have imagined.
Second, things that you say have a much bigger impact on him than you think is possible. If I ever heard my wife say "I had plenty of great/experimental/intimate sex" before our relationship, I'm afraid I may never be able to preform again. It is unfair of you to compare your previously sinful experiences to the God honoring marriage that you are trying to achieve. I think wives sometimes underestimate the affect that words can have on their husband, but please hear this clearly, one positive word spoken about a previous relationship or sexual experience can very well cause your DH days, weeks, and even years of anxiety.
My wife and I were married for 18 years before we figured it out. I wish I could give you a more positive timeline than this but... We have now been married 22 years and I know without a doubt that we have exactly what God planned for our marriage bed. I also know without any doubt that she could not even compare what we have with anything in her past life.
Two things played a huge part in us turning it around. I do not know if it will work in your marriage but neither of these could possible do you any harm. First, we now get out of bed every morning together and pray. We pray about our kids, our church, our marriage, and specifically for our relationship, including sex. (God even cares about our sex!). Second, we both have full permission to talk about anything that is causing us pain. At times I need my wife to reassure me for the thousandth time about her past. For the first 18 years she felt like I was "punishing" her again for her past sin when I needed to talk. She now understands that if I am struggling and need to talk, part of a good marriage is propping each other up (even when talking is a painful reminder to her). Of course, I love her so much that I try to limit this privilege for only times that I am at a low and have not been able to shack it off for some time (my rule is 4 days, after that my funk begins to affect how I respond to her).
I know the pain you and especially your husband are going through. You can not do this alone! Please seek out a counselor, minister or mutual friend to talk about this with. One other caution. Your marriage is extremely vulnerable right now. You need to make sure that you are not alone with anyone of the opposite sex, even a "friend".
Start talking and praying together, it can only make things better.
Working towards the marriage that God planned for us.