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Reasons for Having a Period Every Two Weeks

By Joanna Karpasea-Jones
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why you may be having a period every two weeks
Eyecandy Images/Thinkstock

The menstrual cycle occurs in all females from the onset to puberty (average age 11 or 12 years) to the menopause in middle age (average age between 45-55). The lining of the uterus is shed via vaginal bleeding when a girl or woman has not conceived a pregnancy.

The menstrual period lasts between two days and seven days, usually occurring once every 28 days, although anything from once every 24 days to once every 35 days is considered normal.

If you are having a period more than once every 24 days, it is considered an irregular cycle.

Having a period once every two weeks, or twice a month is abnormal and you should see your doctor because you may become anemic if you are having very frequent periods. They are sometimes a sign of infection or other medical problem that would need treatment.

Reasons for a period every two weeks could be:

• Dramatic weight loss or gain -- This changes the hormones in the body and these are responsible for directing when the period will start.

• Excessive exercise -- This too disrupts hormones.

• Stress -- Exams, family argument, financial worries, divorce, even a holiday can cause a temporary change in your menstrual cycle.

• Illness and/or medications -- Some medications can affect your cycle. Talk to your doctor about altering or stopping your medication if you think this is happening.

• Uterine problems such as polyps, cysts, fibroids or tumors (either benign or cancerous).

• Sexually transmitted infections -- These can cause bleeding in between periods which can be mistaken for a period.

• Thyroid problems -- Thyroid disease could cause a thickening of the uterine lining, resulting in more bleeding than normal.

• Reactions to contraceptive methods -- Sometimes the pill, depo provera injections or the copper-only IUD can result in a change in your cycle.

~ The pill and IUD can make you bleed in between periods, known as "breakthrough bleeding" and this may be mistaken for a period.

~ The IUD can also make your periods heavier.

~ The depo-provera injection can make your cycle irregular, however, it often stops your period altogether instead of making it more frequent.

Add a Comment16 Comments

EmpowHER Guest

Hi am 22yrs I always have my period twice in a month sometime it comes at d end of d month i.e from 28-02 dat same month I will still have my period again pls is it normal

January 23, 2015 - 3:51am
EmpowHER Guest

Your blog article about the is really very informative, I recently read an article which says, "Women’s age at first menstrual cycle linked to heart disease risk". What do you think about it?
visit an another useful resource: https://www.trivedimasterwellness.com/irregular-menstruation/

January 22, 2015 - 6:00am
EmpowHER Guest

I am 19 and have never had a regularly timed period. I had no period for two months, then had six periods within the next two months. It's never been this irregular and my period usually lasts 8 days. Now the flow isn't heavy enough to be a period yet I'm still bleeding a little. This has never happened before and its been going on for 4 days. Is this common to have a barely-anything period?

January 1, 2015 - 1:27pm
EmpowHER Guest

my menstruation comes every 2 weeks after the first week it stops. is this counted as 2 weeks or three weeks because i jog after my menstruation period. is this normal?

-xin chuan

November 28, 2014 - 4:56am
EmpowHER Guest


I'm a 14 year old girl whose periods kinda go..crazy.
Once, my period began 2 weeks after the previous one.
And sometimes, my period doesn't come for 2 months or longer.
The weird thing is, even when I take pills for the pain, the pain doesn't go away sometimes.
What can I do to decrease the menstrual pains and make the menstrual cycles more...normal?


November 23, 2014 - 7:27pm
EmpowHER Guest

Im a 14 year old who am having my period for 16 days and still heavy flow, with no signs of stopping. I had my period since 9 and is starting to worry about this. Usually, my period slows down by the 10th day and stops. But this round seems to be going on and on. Please tell me what i should do. Thanks

November 22, 2014 - 5:50am
EmpowHER Guest
Anonymous (reply to Anonymous)

See your gp to rule out any health issues. It generally takes a few years for young girls periods to regulate so don't panic. But definitely see your doctor as there's medication to lessen a bleed. And tell a family member or teacher, never suffer alone. Its nothing to be embarrassed about.

January 5, 2015 - 5:36pm
EmpowHER Guest

I want my period time. My last period came on 30 oct 14 and i want again 16 nov 14 & change that cyle.

November 9, 2014 - 6:29am
EmpowHER Guest

hi..what is the couse of two weeks menstrual cycle?because i have menstruation now its long two weeks right now. please answer my question because this is my problem right now.i am 22yrs old..

September 24, 2014 - 1:44am
EmpowHER Guest

Hi.. So, I just recently went off my birth control pill about 2 months ago.. I'm trying to have another baby, but my last period came a week and a half early, so I tried again, and my period came a week and a half early again... Does anyone know what this could be caused by or what it might mean???

August 20, 2014 - 7:50pm
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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.


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