A pregnancy test can be taken as early as 6 days before your missed period with some highly sensitive tests, but the most accurate time to take a test is on the first day of a missed period or later. Generally, pregnancy tests detect the hormone hCG, which starts to be produced about 6 to 10 days after ovulation (fertilization). Most tests can reliably confirm pregnancy about 10 to 14 days after conception. Testing too early may lead to false negatives due to low hCG levels. For best accuracy, wait until after a missed period (about 14 days post-ovulation) to take a test.
Key Points:
- Pregnancy hormone (hCG) starts being detectable 6-10 days after ovulation.
- Some ultra-sensitive tests can detect pregnancy up to 6 days before a missed period.
- Most tests are very accurate from the day of the missed period.
- Testing earlier than 10 days post-conception can result in false negatives.
- If tested early and negative but pregnancy is still suspected, retest after a few days.
How timing relates to conception and testing:
- The sperm meets egg (conception) around ovulation.
- Implantation occurs 6-10 days after ovulation, triggering hCG production.
- hCG builds up over days, reaching detectable levels close to the missed period.
In summary, while it is possible to test early with certain sensitive pregnancy tests to get an early positive, waiting for the first day of a missed period ensures the most accurate result.