how would you convice somebody you did nothing wrong?

Why do you have to prove anything to them? You are married to your husband, not them. Is you husband siding with them or does he tell you not to worry about it? He should be siding with you period unless you are doing something really wrong, like child abuse or something drastic like that. He married you, left his family to make a new family with you (there is something about this in the Bible but I couldn't tell you where). Yes there is a bond there but his main bond should be with you now. I have dealt with that kid of foolishness's from my inlaws until I put them in their place. Sooner or later they have to understand that you are not their mound of clay to mold. My husband never once sided with his mother, father or his brothers and sisters when it came down to me and our family. I was first, never second place and he made that clear from the very beginning, even to the point of walking away from his own father completely and letting the rest know they could be walked away from too. If you allow them to do it and control the situation it will not stop so you have to decide if this is what you feel like putting up with and if it isn't they you need to buck up and put a stop to it. Easier said than done (I know) but once you put you foot down once it gets easier.

I agree with the others. You can do good deeds like getting involved with church activities but you know some people are going to believe what they want. Sometimes the people you think there is very little chance that they should or would judge you are exactly the ones that do and they will think they are doing nothing wrong. Just remember your husband is the only one that should matter to you and you should be all that matters to him.

Start right now doing good things that they can see for themsleves. There are many ways to help and be kind....both at home and at church and in society. The more good things you do, the more good people will see in you.

If your husband's parents believe differently from you, there is little you can do to make them think differently. My father is very very religious, and he disapproves of most of the things I enjoy - but I don't think I'm doing anything wrong, so I continue to do it, because MY beliefs are that there is nothing wrong with the things I enjoy. My father and I don't have a very good relationship because of his views, but I don't really let it bother me. So if your belief system (or religion, in this case) differs from your inlaws, then try not to let it get to you - they will always believe what their religion tells them to, and there is precious little you can do about. If you and your inlaws are the same religion, however, then maybe you should think about some of the things they have a problem with - that's not to say that you ARE wrong, but merely that you might be able to see better where they are coming from. Try sitting and talking with them - not fighting, but a calm conversation about why they have a problem with your behavior. It might help. I know what it's like to have difficult inlaws. Good luck!