Having an irregular period doesn't necessarily mean something is wrong. In fact, most women will experience changes in their cycle at some point in life. There are many reasons why your period may not arrive at the same time every month, and the variation is often completely normal. 

What's Considered An Irregular Period

For some people, their period arrives like clockwork. For others, it's less predictable. While the average menstrual cycle is about 28 days, anything between 21 and 35 days is considered normal. A cycle that regularly falls outside of this range would be seen as irregular. 

Other signs of irregularity include changes in how many days pass between periods, noticeable shifts in flow, or varying period lengths from month to month. 

Common Causes of Irregular Periods

The most common cause of irregular periods is a hormonal imbalance, particularly fluctuations in estrogen and progesterone. 

However, that's simplifying it as there are many reasons your period might become irregular. These are some of the most common:

• Puberty: When your period first begins, hormone levels fluctuate dramatically. This can lead to irregular cycles in the early years, which is usually nothing to worry about. 
• Menopause: As you approach menopause, your hormone levels start to decline. This often results in cycles becoming less regular before they stop altogether. 
• Pregnancy: A missed period might seem irregular at first, but it's often one of the first signs of pregnancy.
• Hormonal contraception: Starting or switching contraceptive methods can disrupt hormone levels, leading to temporary irregularities. Most cycles stabilize once your body adjusts. 
• Significant weight changes: Sudden weight loss or gain can affect your hormone levels and cycle regularity. 
• Stress and anxiety: Ongoing stress impacts the brain's ability to regulate hormones, which can delay or disrupt your cycle. 
• Exercising too much: Excessive levels of physical activity, especially without enough rest or nutrition, can throw off your hormonal balance and even stop your period. 
• PCOS: A hormonal disorder marked by high levels of androgens (male hormones) that affect ovulation. It may cause missed periods, facial hair growth, or hair thinning. 
• Thyroid disorders: An overactive or underactive thyroid can disrupt the hormones that regulate your cycle. 

What Can You Do

If you've noticed that your periods are irregular, the first step is to start tracking your cycle. Using a period tracker like Cycles can help you log your period dates and cycle symptoms over time. Making it easier for you to spot patterns, even if your cycle isn't consistent. This can give you more insight into your body, make your period a bit more predictable, and help you feel more in control. 

There are also simple habits you can try at home that may support a more regular cycle. These include practicing yoga, managing stress levels, maintaining a healthy weight through regular exercise and balanced nutrition, and taking ginger supplements.

While occasional irregularities are normal, it's a good idea to speak with your doctor if you experience any of the following: 

• Your period lasts longer than 7 days
• You notice symptoms like unexplained weight gain, fatigue, facial hair growth, or changes in your skin.
• You're struggling to get pregnant.

Want to learn more about your menstrual cycle? Follow @cycles.app