A prothrombin time test measures how quickly your blood clots. Sometimes called a PT or pro time test, a prothrombin time test uses a sample of your blood. Prothrombin is a protein produced by your liver. It is one of many factors in your blood that help it to clot appropriately.
A prolonged PT means that the blood is taking too long to form a clot. This may be caused by conditions such as liver disease, vitamin K deficiency, or a coagulation factor deficiency.
If you want to know the exact cause of your infertility, then you must go and consult with an IVF Specialist, they will help you with exact cause & appropriate treatment.