My wife doesn't see her period its 9months now and she us 33years?

Common problem: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections & hormonal changes can cause spotting. If there is a concern for pregnancy then redo a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit.

Many possible causes: Pregnancy isn't the only thing that can cause you to miss your period. Extreme dieting, anorexia, training for a marathon, PCOS, thyroid problems, anovulation, uncontrolled diabetes and many other things can cause this. She should see an Ob/Gyn and find out what is causing her to miss periods. Best wishes!