It’s common to have menstrual cycles of varying length. A fluctuation of 4-5 days in the cycles is normal. When your menstrual cycle goes out of this normal range, then it’s considered to be irregular.
A cycle shorter than 21 days and longer than 35 days is considered to be an irregular menstrual cycle. Also, if your periods are completely skipped a month, that’s irregular. Many women also experience unpredictable flow and cycle duration if they have irregular periods.
How to accurately count your cycle?
Many women struggle with counting their cycle correctly. Consider your first day of bleeding as day one. Wait till the next time you get your periods. Now, the last day before your bleeding starts is the last day of your menstrual cycle. This should be between 22-34 days to be called regular.
How are irregular periods related to fertility?
Ovulation, the release of an egg from the ovary, is crucial for pregnancy. Irregular cycles can make it challenging to predict ovulation accurately.
Ovulation occurs a few days before the start of your period. Having regular unprotected intercourse during fertile window increases your chances of conception. But the unpredictability caused by irregular periods can directly impact fertility. Previous uterine scarring or hormonal medications can cause irregular bleeding without ovulation as well.
Irregularity can be a symptom of hormonal imbalances like Polycystic Ovarian Syndrome (PCOS) that might affect ovulation and egg quality. In PCOS, excess androgens (sometimes called “male” hormones) can prevent mature eggs from developing and being released.
Causes of irregular periods
Several factors can lead to irregular periods, such as:
- Polycystic Ovary Syndrome (PCOS)
- Thyroid Issues: Hypothyroidism or hyperthyroidism
- Stress: Emotional or physical stress
- Weight Fluctuations: Rapid weight gain or loss
- Excessive Exercise: Intense physical activity
- Medications: Certain drugs can disrupt menstrual cycles