You can test positive for pregnancy as early as about 6 to 8 days after ovulation, which is several days before your expected period. This is when the hormone human chorionic gonadotropin (hCG), produced after implantation of the fertilized egg, starts to appear in your urine at detectable levels

. Details:

• Implantation occurs roughly 7 to 9 days after ovulation, after which hCG production begins

• Some highly sensitive home pregnancy tests can detect hCG as early as 6 days before your missed period (which corresponds to about 8 days post-ovulation)

• Early detection tests claim to detect pregnancy with about 77-78% accuracy at 6 days before a missed period, but accuracy increases the closer you are to the day of your missed period, reaching over 99% on or after the missed period

• Testing very early may result in false negatives because hCG levels might not be high enough yet

• For the most reliable results, testing on the day of or after your missed period is recommended, preferably with the first morning urine when hCG concentration is highest

In summary, while you can get a positive pregnancy test as early as 6-8 days after ovulation with sensitive tests, the accuracy improves significantly by the time your period is due or missed.