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Shorter and heavier period after unprotected intercourse

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My period always comes on time and last for 4 days but this month it came a day late and blasted only 2 days and was very heavy then 4 days later I noticed brown discharge what could it be I haven't been under any stress or haven't been ill but I had Un protected sex during my fertile cycle?

Category: Family Physician-GP

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Category: Infertility Specialist
 24 Doctors Online

Thanks for your query at DoctorSpring.

Any period that deviates from the normal pattern should be investigated for pregnancy or related complications ( a miscarriage or an ectopic pregnancy ) in a woman who is sexually active.

Hence, I request you to take a urine pregnancy test to know if this is the case.

If the test is negative, do not worry, sometimes, a slightly different period from usual can occur without any reason.
As you are well aware, any kind of stress, fever, illness, change of place, hectic travelling, weight loss or gain that happened rapidly, could cause such a period.

Also, medications such as birth control, antidepressants and some others can alter your menstrual cycle, as can conditions such as anemia, jaundice, thyroid hormone disorders, raised prolactin levels etc.

Some gynecological conditions like polycystic ovaries, endometrial hyperplasia, cervical or uterine polyps also can present this way.

Right now, I would ask you to first off take a pregnancy test.
If this is negative, do not worry, and wait it out.

If the same pattern recurs again, consult a Gynecologist for thorough assessment and evaluation, including an internal examination ( per vaginum and per speculum ) and pelvic ultrasound plus hormonal level measurements.

Please feel free to discuss further. All the best.

Patient replied :

I have also been dizzy and really tired...


Please take a test as suggested, and if negative, then proceed with the examination outlined.


Patient replied :

I toke a pregnancy test and it came back neg so I waited for my next period and it came 3 days early but only lasted 1 day very light.. But been getting sharp pains in my right side?


Well it might take some time for the cycles to get regularized. As I said please consider an OBGYN visit. You might also want to take an Iron + Folic acid tablet (OTC). The pain appears non significant. But since the irregular periods is persisting you might require a USG scan.

Hope this helps
Thank you

Dr. Aarti Vazirani
Category: Infertility Specialist
Residency: Obstetrics & Gynecolog, BJMC,Civil hospital, Ahmedabad, 2008
Post Graduate: MS (Obstetrics & Gynecology), B.J. Medical College, Ahmedabad, 2008
Medical School: MBBS, B.J. Medical College, Ahmedabad, 2004
Dr. Aarti Vazirani and 4 other Medical Specialists are ready to help you

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