Low weight, excessive exercising, eating disorders, and stress may also impact the duration and frequency of your menstrual periods. If your irregular or short menstrual cycle is a new development and not your typical pattern, you may want to consult with your doctor.17 Feb 2010
Does a shorter period mean less fertility?
Short cycles, early or late onset of menstruation, associated with reduced fertility. Short menstrual cycle lengths and early or late onset of menstruation are associated with reduced fertility, according to a new study led by Boston University School of Public Health (SPH) researchers.29 Aug 2016
Do cycles shorten with age?
Average cycle length decreases with age, from about 29 days for people in their 20s, to 26 days for those in their 40s (26,27). Cycles can also become shorter due to a shortening of the luteal phase, caused by any factor leading to a decrease in the ovary's production of progesterone after ovulation (28).)4 Sept 2019