Breach of pre-marriage promise

My wife is refusing to fulfill her pre marriage promise to deliver a baby with a borrowed egg. I got married in January 2014. Before marriage my wife told me that she has a disease and she will not be able to reproduce a baby. I wrote an e-mail to her and made it clear that as the disease is a genetic disease so she would deliver our child with egg borrowed from some other healthy lady. She gave me an affirmative answer.

She told me that she will do whatever is beneficial for the child and we got married then. But now she is creating problems and is breaching her pre marriage promise. Now she wants to have a child with her own egg but she has a genetic disease. We are living separately from April 2014. Can I file a divorce case on the basis of genetic disease / inability to produce a healthy baby. Can i get compensation for breaching the pre marriage promise?