Can I have a prenup invalidated if there was fraud?

English is my second language, I am Russian. My wife is American and had a prenup drafted before we married. She told me it was to protect her family business from my interest in case we divorced. The document is in English and I could not read all of it, so her lawyer at the time read it to me. I don’t think he read it to me truthfully or accurately and I think I’ve given up more than I intended to. How do I prove this in court and get the agreement changed or thrown out? My wife wants to divorce me and she is saying I signed to get nothing from her, even though I’ve put all my income into the marriage and our home.