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How long after conception can pregnancy be detected by home pregnancy test?

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Posted on Thu, 23 Aug 2012
Question: How long after conception can pregnancy be detected by home pregnancy test AT THE EARLIEST? Can it show positive 3/4 days before missed period? If conception took place on the 1st of the month,when would first positive reading accur (how many days after)?
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Answered by Dr. Michelle Gibson James (1 hour later)
Hi

Pregnancy tests detect the presence of human chorionic gonadotropin (HCG) in the urine. HCG is produced after implantation in the uterus. Implantation tends to occur about 7 days after conception.
The levels of HCG tend to double every few days.
Most pregnancy tests can only detect HCG if it is above a certain level. The higher the HCG, the more accurate the results.

You should choose a test that detects HCG at low levels if you wish to find out if you are pregnant before your missed period. Some pregnancy tests can detect very small levels of HCG and can be used up to 6 days before missed period.


You should go to your local pharmacy and ask for an early result pregnancy test.

I hope this answers your question, feel free to ask any additional questions.

Regards,
Above answer was peer-reviewed by : Dr. Shanthi.E
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Answered by
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Dr. Michelle Gibson James

General & Family Physician

Practicing since :2001

Answered : 16811 Questions

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How long after conception can pregnancy be detected by home pregnancy test?

Hi

Pregnancy tests detect the presence of human chorionic gonadotropin (HCG) in the urine. HCG is produced after implantation in the uterus. Implantation tends to occur about 7 days after conception.
The levels of HCG tend to double every few days.
Most pregnancy tests can only detect HCG if it is above a certain level. The higher the HCG, the more accurate the results.

You should choose a test that detects HCG at low levels if you wish to find out if you are pregnant before your missed period. Some pregnancy tests can detect very small levels of HCG and can be used up to 6 days before missed period.


You should go to your local pharmacy and ask for an early result pregnancy test.

I hope this answers your question, feel free to ask any additional questions.

Regards,