That's interesting...my periods have been coming further apart since being on risperdal so perhaps it is a side effect.

On a side note-how are your diet, excercise, and sleep habits? Are you under a great deal of stress? Have you lost or gained a lot of weight recently? Do you sleep too little or too much? Do you not excerise enough, or do you excercise too much? All could be factors...I'd just suggest going and seeing either your family doctor or a gynocologist. And when you see whoever is prescribing your psych meds, ask if it is a side effect.