Papaya is another heat inducing food that can stimulate the uterus for a good period flow. One should eat papayas in moderation though, as its heat can cause stomach upsets.The fruit contracts the uterus muscle fibres to regulate the menstrual flow. The rich carotene content in papayas can help induce the period or even prepone it. Having it a day before the estimated date can help in keeping irregular periods at bay. Eating it when the fruit is not ripe yet can have better effects on the body than that of a ripe papaya