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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Delay In Periods Despite Taking Unwanted-72 Within 72 Hours?

i had sex on 15th june with my bf and i am 26 yrs ...he ejaculated several times in me ....then i took unwanted72 in the next morning...today is the 4th day and still i am not bleeding....and i am in doubt whether the pill will work or not...so please say me when my bleeding will occur as i took the pills within 72 hours
Mon, 7 Sep 2020
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General & Family Physician,  's  Response
Hello,

Emergency contraceptive pills taken within 72 hours is very effective. However, 1-2 % women have complained of pregnancy after taking the pill within 72 hours. The effectiveness may be affected due to drug interaction (medicines you have taken other than it), ovulation timing and your BMI.

Unwanted -72 works best within 72 hour of un-protected sex. It will not work for sex that you may have after taking it. Wait for a few days, stay relaxed, sometimes stress also delays periods. However, if you miss the periods get pregnancy test done. You may visit a gynecologist, get clinically examined. Get blood and urine test for HCG done, get it managed.

Take care. Hope I have answered your question. Let me know if I can assist you further.

Regards,
Dr. Nupur K., General & Family Physician
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What Causes Delay In Periods Despite Taking Unwanted-72 Within 72 Hours?

Hello, Emergency contraceptive pills taken within 72 hours is very effective. However, 1-2 % women have complained of pregnancy after taking the pill within 72 hours. The effectiveness may be affected due to drug interaction (medicines you have taken other than it), ovulation timing and your BMI. Unwanted -72 works best within 72 hour of un-protected sex. It will not work for sex that you may have after taking it. Wait for a few days, stay relaxed, sometimes stress also delays periods. However, if you miss the periods get pregnancy test done. You may visit a gynecologist, get clinically examined. Get blood and urine test for HCG done, get it managed. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician