I've heard reports of people getting positives as soon as 7 days past conception, however.. you are more likely to get a more accurate result by waiting 12-16 days past conception to test.
~pawsalmighty
http://www.peeonastick.com
how long after conception can a pregnancy test detect that your pregnant
About 2 weeks after conception a pregnancy test will be accurate. You should ensure to take the test in the morning when the level of the pregnancy hormone, hCG will be at its highest.
YES! You can take pregnancy test after 4 weeks of conception.
A person can take a pregnancy test two weeks after conception.
It can be taken any time of day and pregnancy will begin to show 2 weeks after conception
2 weeks after conception
You can test as early as 5 days after conception with a quantitative blood test at your doctors. Or as early as two days before your period is due with a HPT.
Usually 14 days after conception. Or 28 days from the first day of your last period.
You can take a pregnancy test at any time, even if you are on the birth control pill. The test will turn positive no sooner than 10 days after conception.
About 2 weeks after conception
when you think you're pregnant there supposed to be accurate 5 days after conception
The surest test is to have the baby.