False statement regarding Spasmodic Dysmenorrhea

Dysmennorhoea means painful menstruation Can be primary and secondary Often seen in adolescents and almost always in ovulatory cycles It usually appears within 1or 2 yrs of the menarche,when ovulatory cycles are established It is usually less after pregnancy and childbirth Spasmodic pain typically begins few hrs after onset of menses; last for up to 24-48hrs, but may also be confined only to a few hours