Facebook Pixel

Reasons for Having a Period Every Two Weeks

 
Rate This
Menstrual Cycle related image Andres Rodriguez/PhotoSpin

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 Comment186 Comments

EmpowHER Guest
Anonymous

I'm 26 and right now my husband and I are working on kid number two. Yesterday my ovulation test came back positive, fourteen days in, and today it seems like I'm suddenly having my period. Of course the pregnancy test today came back negative, like the last few I've taken sadly, and I don't believe I'll be able to get any accurate results for another few weeks. I've had months with double periods only a few times before so is it just a horrible coincidence that I've having one again, if it's even possible after testing positive for ovulation. Or is it more likely something might be wrong? As of right now my doctor's only advice is to wait a little longer but I'm scared and hopeful it might have something to do with getting pregnant.

November 28, 2016 - 11:24am
Guide (reply to Anonymous)

Hello Anonymous,

I can appreciate how you must be feeling. All that you can do is follow your doctor's advice and wait.

Regards,
Maryann

November 29, 2016 - 9:56am
EmpowHER Guest
Anonymous

Help!! I am very worried nd scared, ok so I got my period on the 7th of NOV., and then again on the 24th of NOV., and the weird part is that I didn't get any cramps or anything like that, and before in the past months I would get all the works that comes along with my period, like sort of a form to give me a heads up that it was coming, also It came sort of dark lookin, like a brownish type of color, my concern is why I got it twice in the same month, please please help!! I am 37 years old, and mother of two young ladys, and wife of one AWSOME hubby! PLEASE please help!!

November 28, 2016 - 3:35am
Guide (reply to Anonymous)

Hello Anonymous,

How long is your normal menstrual cycle? How long did each period last? Was there a normal, heavy flow or spotting with each?

Consider speaking with your gynecologist, who knows you and your medical history. I can only suggest a hormonal issue, because the menstrual cycle is regulated by hormones.

Keep us updated,
Maryann

November 28, 2016 - 9:42am
EmpowHER Guest
Anonymous

I'm 38 this my frist time I had my period twice a month is it normal for have this I tide my tubes already

November 27, 2016 - 9:47pm
Guide (reply to Anonymous)

Hello Anonymous,

It would not be so unusual if the first period was during the first days of the month, and the second started in the very last days of the month.

How long is your menstrual cycle? If the two periods were only a week or two apart, that would be a concern and something to discuss with your gynecologist.

Regards,
Maryann

November 28, 2016 - 9:39am
EmpowHER Guest
Anonymous

Hi, I have a similar problem.
I'm 20 and for the last 6 or so months I've had two periods every month. They're either longer than usual and starting with brown-looking blood, or completely normal and going away within the normal for me duration. I'm a university student, so that adds up to the stress. I've had this happen to me once or twice before, last year, when I wasn't in sexual contact with anyone, so I'm ruling out an STD. My gynecologist gave me herbal pills a few months ago, but they don't really seem to be working, or they're doing their job very very slow. If anyone has any idea what could be causing that, please tell me, because it's freaking me out. Thank you in advance!

November 12, 2016 - 2:26am
HERWriter Guide (reply to Anonymous)

Hi Anon

I would ask your doctor for a full blood work up to see where you stand with your hormones - all of them. not just reproductive hormones. 

Please ask for this blood panel to be done - you may find your answers there.

Best,

Susan

November 24, 2016 - 3:32pm
EmpowHER Guest
Anonymous

Hi,

I am in my mid-30's and I appear to be having 4 periods every 3 months. It's still October and I am on my 13th Period of the year. Earlier this year I have had two cycles which were shorter than 21 days.

I am really worried about how this might effect me having children in the future as my partner wants to wait a few more years before we start our family. I am scared that this means I will miss out. No one seems to understand how important having children is to me or how worried I am about my periods.

There is no information anywhere about having 15 periods in one year and what it means. All I know is I find it really upsetting.

October 24, 2016 - 12:56pm
HERWriter Guide (reply to Anonymous)

Hi Anon

Thanks for your post! 

15 periods a year works out an average of a period every 3.5 weeks.  A three week cycle is considered normal.  A cycle ranging from 21-35 days is considered normal so I don't think you have too much to worry about. Your cycle is not unusual. 

But please feel free to mention this to your gynecologist on your next visit. 

If you are in your mid 30s and your partner wants to wait another few years before starting a family, I think he (and you) ought to rethink that. While women are having children into their 40s these days, putting off children to your late 30s or 40 is not a good idea.  If you would like one or two children, I suggest you get started in the next year. 

Best,

Susan

October 25, 2016 - 1:31pm
Image CAPTCHA
Enter the characters shown in the image.
By submitting this form, you agree to EmpowHER's terms of service and privacy policy
Add a Comment

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.

Menstrual Cycle

Get Email Updates

Related Checklists

Menstrual Cycle Guide

Have a question? We're here to help. Ask the Community.

ASK

Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!