You should wait and see if your next period is late, if it's even a day late you can do a home pregnancy test with good accuracy!
You should wait about 7-10 days just to be sure the sperm did not attach with the egg at any point in time.
You should wait about a week to take a test
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.
when should u take a pregnancy test, if you miss a period
Wait a week and then retake the test.
You should take a pregnancy test shortly after your missed period. That is when a home pregnancy test is most effective. Although I have heard you can do a blood test at the doctor as soon as 2 weeks before your missed period.
Most women should wait at least a few days after sex before taking a pregnancy test.
4 weeks to be really sure.
You should wait for at least two weeks for then only can you do a pregnancy test that will show a result.
When your period Is over take the test.