My retainer puts a little pressure onto my new porcelain crown.

I had a root canal done on one of my front teeth so now I have a porcelain crown on it after the treatment. Now that I have a crown which is slightly more outward than my actual tooth that was shaved off, my retainer (the silver metal part) pushes onto it and I feel just a little pressure (sometimes pain in the morning). Is this okay? Can a porcelain crown move in accordance to my retainer? Does this loosen the cement? I didn't think of this situation before, however it's coming up now.