Can I get an annulment, or do i have to get a divorce? I just got married and found my wife cheating on me.

Annulment is a legal proceeding by which a marriage is declared invalid.  It differs from a divorce in that it declares that the marriage never existed as opposed to dissolving a marriage.  There are two types of annulment, civil and religious.  A civil annulment occurs through a petition with the court of your jurisdiction.  A religious annulment is given by a church and is governed by church rules.  Annulment can be more complicated than a divorce, especially if the marriage is a long-standing one.  It is often sought when the parties have not been married for more than a few weeks or months.  In these cases, there are no property rights or custodial matters to be considered by the court.  Fraud is one of the grounds for getting an annulment, in your case you would argue that your wife entered into the marriage fraudulently as she never intended to remain faithful.

Your best option is to contact legal counsel in your area immediately.  A lawyer experienced in family law will be able to give you information about the best way to proceed.  Do not wait to take action, the longer you wait, the more difficult annulment will be.