45 years old. Erratic periods for two years. Anywhere from 16 day cycles to 30 day cycles. This month it came on day 13. Light bleeding.

Erratic periods. You may be having hormonal swings due to perimenopause changes. You may be having other symptoms or hot flashes, fatigue, depression, decreased libido, emotional swings, mood swings etc. See your doctor who specializes in female hormal problems that only uses bio identical hormone therapy.