No, 2 weeks is the earliest the test is reliable.
You know that you might be pregnant after you have had sex at a fertile time. The start of pregnancy is two or three days after the sex, and nothing indicates that you are definitely pregnant for many days after that.
For an accurate result, you can take a pregnancy test 14 days after having sex, or the day of your expected period.
2 days
Most women will never know that they are pregnant at 5 days.
A sow is pregnant for "three months, three weeks, and three days", or 115 days total.
If you have period you are not pregnant.
Then you're not pregnant...
Look
i had sex 6 days ago and now i am getting headaches and nausea could i be pregnant? If you turn out to be pregnant let me know. I had the same symptoms and a negative test and now my period is three days late!
Most women get pregnant mid-way between their periods. You need to plan to have sex 12-15 days after your period. There are three or four days when your chances are excellent to get pregnant. Good luck.
about 30 to 40 days after
Although a woman is most fertile about 14 days after her period starts, she can get pregnant during other times of her cycle.