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why my period is back after having sex

A 21-year-old female asked:
Dr. Robert Kwok
32 years experience Pediatrics
It happens sometimes: Plan B can alter the menstrual bleeding for the cycle in which Plan B was taken, and sometimes the next cycle too. There can be irregular spotting. On ... Read More
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A 30-year-old female asked:
Dr. Geoffrey Rutledge
40 years experience Internal Medicine
You : You will need to go see you doctor. The reason you are supposed to abstain from sex for 3 weeks is because your cervix is opened for the abortion proc ... Read More
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A 24-year-old female asked:
Dr. Warren Wolfe
57 years experience Family Medicine
Good question: It is unlikely that you are pregnant but on the other hand having unprotected sex is like playing Russian Roulette. My advice is to repeat the pregnan ... Read More
A member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Menstrual cycles: are not always regular. Some reasons for irregularity include weight gain or loss, breastfeeding, alcohol use, eating disorders, marked emotional str ... Read More
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A 45-year-old member asked:
Dr. Paul Neumann
36 years experience Gynecology
Yes: Yes, if you get pregnant. If not, sex will not cause you period to be delayed.
A 27-year-old female asked:
Dr. Rahil Malik
9 years experience Obstetrics and Gynecology
Pregnancy: Every unprotected sexual event is an opportunity to conceive. You may be pregnant. If a urine pregnancy test is positive, that can give you the answer ... Read More
A 23-year-old female asked:
Dr. Paul Slawek
53 years experience Radiology
Could be pregnancy: Possible implantation bleeding from pregnancy. Get pregnancy test. See Gynocologist.
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A 25-year-old female asked:
Dr. Jeff Livingston
21 years experience Obstetrics and Gynecology
Many options: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring ... Read More
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A 25-year-old female asked:
Dr. Patrick Connerly
48 years experience Family Medicine
Maybe: Some of the answer depends on which "few days" you had sex, but most likely this is "anovulatory bleeding"
A 38-year-old female asked:
Dr. Andrew Silverman
48 years experience Fertility Medicine
Conception: If you haven't been trying for 6 mos, i'[d advise you to keep trying. If it's been over 6 mos i suggest that you see your gyn. The current cycle doe ... Read More

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