The best time to test for pregnancy is from the first day of a missed period. For more accurate results, it is recommended to wait about one week after the missed period to take a pregnancy test. Testing before the missed period increases the chance of a false negative result since the hormone hCG may not be high enough yet to detect. In cases where the menstrual cycle is irregular or the exact date of a missed period is unknown, it is advised to wait at least 21 days after having unprotected sex before testing. Blood tests can detect pregnancy earlier, about 6 days after implantation, but home urine tests are the common first step.
Key Points:
- Pregnancy tests detect hCG hormone, which starts to rise after implantation (~6-10 days post ovulation).
- Testing on the first day of a missed period is usually reliable.
- Waiting about a week after the missed period improves accuracy.
- If unsure about the timing, wait 21 days after unprotected sex.
- Blood tests can detect pregnancy earlier than urine tests.
This timing helps minimize false negatives and ensures more dependable results.