Find out the earliest day you can reliably take a pregnancy test — from your last period, your ovulation date, or how many days past ovulation (DPO) you are.
Most sensitive home tests can pick up a pregnancy around 10–12 days past ovulation (DPO) at the earliest, though hCG levels vary a lot from person to person. Testing on the day your period is due (about 14 DPO) is far more reliable than testing early.
DPO stands for "days past ovulation" — a way of counting where you are in your cycle relative to when you ovulated, rather than relative to your last period. It's commonly used because implantation and early pregnancy hormone timing line up more consistently with ovulation than with the start of a period.
Most clinics recommend waiting about 14 days after an IUI procedure before testing, since IUI is typically timed right around ovulation — testing earlier than that raises the risk of a false negative, or a false positive if a trigger shot was used (trigger hCG can linger in your system for a week or more).
The same general guidance applies as any cycle: test around 14 days after ovulation (not 14 days after your last Clomid pill), since Clomid is used to trigger or support ovulation rather than change how pregnancy testing timing works. Track your ovulation date, if known, for the most accurate estimate.
Fertility clinics typically schedule a blood beta hCG test around 9–14 days after transfer, depending on whether it was a Day 3 or Day 5 embryo — earlier than that risks picking up residual trigger-shot hCG rather than a true result. Always follow your clinic's specific testing schedule over a generic estimate.
If you tested before the "most reliable" date above, it's worth retesting a few days later, ideally with first-morning urine when hCG is most concentrated. If your period still hasn't arrived several days past a negative test, or you have ongoing symptoms, checking in with a doctor is the next best step.