If you were just psychologically pregnant would it go so far as to stop your period for months?

This is an issue that I don't think many people are aware of, you can be "psychologically" pregnant. If you want it badly enough or are scared of it enough your body will do very weird things. So yes, you could have a lapse in your period even if your not really pregnant. Good luck with whatever turn out that you want.

This is a very good explanation of causes and treatment of 'psychological' or 'phantom' pregnancy.

http://www.irishhealth.com/?level=3&con=68