Relaxin
Confirm your female's pregnancy with this one-step rapid Relaxin test kit.
Each test kit comes complete with a syringe, pipette, test tube and test.
The test will require blood collection and must be separated into serum using a centrifuge. Relaxin test results are available within a few minutes with 95% accuracy.
Pregnant females produce a hormone called relaxin during the developing stage of the placenta. At around 22 - 27 days post-implantation relaxin can be detected in the female's bloodstream and the remaining elevated majority of the pregnancy up until birth.
I recommend waiting until 30 days post ovulation to run a relaxin test. Please also remember that if you have a pregnancy that is reabsorbing there can still be relaxin present.
**** If you are not able to do a blood collection or spin the blood down with a centrifuge there is an alternative that is very easy to use Belly Labs ***
here is a link
https://thebreederscupboard.ca/products/bellylabs-pregnancy-test