Family Planning Plus

First of all, the fallacio (giving head) you performed between periods would have no effect on the length of your menstrual cycle. There are many causes of irregular and frequent menstruation. Some of these causes include stress, excessive exercise, medications (especially hormonal birth control methods) or perimenopause. If you are not using a hormonal method of birth control and you continue to have frequent bleeding episodes, you need to be evaluated by a medical professional to rule out more serious causes.