Trigger Shot Test-Out Calculator
An hCG trigger shot (like Ovitrelle, Pregnyl or Novarel) can show up on a home pregnancy test for days afterwards. "Testing out" means testing daily until the trigger fades to negative, so a later positive is more likely to be real. This estimates when your trigger should clear.
Your trigger
250 micrograms of Ovitrelle is roughly 6,500 IU of hCG.
IU
Enter your trigger date and dose to estimate when it should clear.
Important: this is a rough estimate only. How quickly a trigger clears varies a lot from person to person and with the dose. Home tests are not reliable for IVF decisions. Your clinic's blood test (beta hCG) is the only definitive answer, always follow their guidance.
Trigger likely clears around
That is roughly after your trigger on .
Start testing out
Days since trigger
Approx. dose
Your test-out timeline
A line that fades to negative and then comes back stronger over the following days is a more promising sign than the trigger, but only your clinic's beta blood test can confirm a pregnancy.
Next step
Beta hCG Doubling Calculator
Got your beta results? Check the doubling time between two values.