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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How Accurate Are Hpt Kits When Done 10 Days Before Periods?

Okay, so, my boyfriend & I had sex about 2 weeks ago.. I know for a fact he pre-cummed in me.. & the other day, we had sex, and the condom came off inside me, & when I pulled it out there was hardly any cum in it .. I took a test yesterday morning & it said negative .. I read on the back of the box if you take it 4 days before your period is supposed to start it will be about 53% accurate .. Yesterday would have been about 10 days before my period is supposed to start .. So I'm not sure how accurate that would have been...
Wed, 25 Jun 2014
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Radiologist,  's  Response
Hello
Thanks for writing to HCM

You should wait up to next menstrual period .If you misses your next period then urine pregnancy test should be done.
Urine pregnancy test depend upon hCG hormone in urine which is excreted only after fertilization of ovum.Fertilization process take some time.
Generally,Urine pregnancy test is done after missed period for confirmation of pregnancy,but Ultrasound of pelvis is the investigation of choice for confirmation of pregnancy.It can detect G-sac earliest.

Hope i have answered your query.
Take Care
Dr.Indu Bhushan
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How Accurate Are Hpt Kits When Done 10 Days Before Periods?

Hello Thanks for writing to HCM You should wait up to next menstrual period .If you misses your next period then urine pregnancy test should be done. Urine pregnancy test depend upon hCG hormone in urine which is excreted only after fertilization of ovum.Fertilization process take some time. Generally,Urine pregnancy test is done after missed period for confirmation of pregnancy,but Ultrasound of pelvis is the investigation of choice for confirmation of pregnancy.It can detect G-sac earliest. Hope i have answered your query. Take Care Dr.Indu Bhushan