why do periods come early or late

Most women have an idea of when they should expect their next period, but there is always a possibility that it may come earlier than anticipated. Periods come every 23 to 35 days, but a woman may be irregular and start her period early one month and late the next, according to the website 34 Menopause Symptoms. Early periods usually result from a disruption of a womanвs hormone levels. Women who are constantly anxious, tense, tired or overworked are more likely to have an early period because stress causes their hormone levels to fluctuate, according to 34 Menopause Symptoms. Women who do not have a balanced level of estrogen and progesterone in their body do not ovulate regularly, resulting in an irregular or early menstrual period.


Caffeine is a stimulant that has been known to cause early periods in some women, according to the website Women to Women. Large amounts of coffee, soda, chocolate or tea can throw off a womanвs menstrual cycle by altering her hormone levels. Too much caffeine increases the amount of estrogen a woman produces, and excess estrogen can cause a woman to menstruate early. In addition, caffeine may cause a woman to feel irritable and nervous, thus upsetting her natural hormonal balance and resulting in an irregular period.


Poor nutrition and over-exercising can block the brain from sending the necessary signals to the adrenal glands to produce cortisol, the hormone responsible for ovulation, according to Women to Women. In addition, extreme weight loss or weight gain can throw off a womanвs cycle by causing her to prematurely produce large amounts of estrogen, the hormone responsible for starting menstruation.
Worried about a late period, but know youвre not pregnant? Missed or late periods happen for many reasons other than pregnancy.


Common causes can range from hormonal imbalances to serious medical conditions. There are also two times in a womanвs life when itвs totally normal for her period to be irregular: when it first begins, and when starts. As your body goes through the transition, your normal cycle can become irregular. Most women who havenвt reached menopause usually have a period every 28 days. However, a healthy menstrual cycle can range from every 21 to 35 days. If your period doesnвt fall within these ranges, it could be because of one of the following reasons.

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