For people who menstruate, the month is often determined by the dates their period occurs.

And while periods typically occur monthly, the menstrual cycle looks different for everyone.

Don’t worry too much, though.

woman suffering from cramps on her period

This is mostly going to affect those who partake in strenuous exercise or activities that require weight limits.

According toVerywell Health, intense exercise may also lead to spotting, which can be misconstrued for your period.

But if exercise hurts while on your period, be sure to talk to your doctor.

middle-aged woman going through perimenopause

People who suffer from eating disorders may also notice a change in their menstrual cycle.

According toEveryday Health, people who are underweight often have issues ovulating regularly.

If you need help with an eating disorder or know someone who does, help is available.

Person tired after running

Stress can make your period come early

Stress can wreak havoc on your entire body.

But added stress can also affect your period.

According toHealthline, stress also affects your hormones, which leads to irregular periods.

woman showing her weight loss with big jeans

Moreso, those who suffer from anxiety or had a traumatic life event occur will notice the change.

No matter what level of stress you are feeling, it is always good to talk with a doctor.

Even IUDs or the Depo-Provera shot can cause your period to show up untimely for a few months.

Person looking stressed out

According toMedical News Today, sexually transmitted infections or STIs are one of those conditions.

STIs often also come with other symptoms like discharge, pain during sex, and pain during urination.

Those who have recently experienced pregnancy loss before 20 weeks may also notice bleeding before their expected period.

woman taking medication

All of these conditions should be taken seriously and you should speak with your doctor as soon as possible.

woman holding a paper with PCOS on it