Hndi po kc accurate ang PT. Blood test, & Sonogram is more accurate. On my case, I have tried PT many times and magulo results, so nagdecide na ako magpunta s OB dhil alam ko symptoms n ng pregnancy ang nararamdaman ko, only to find out I'm 3 months pregnant. Advice ko po sayo, just be patient and wait, if pregnant ka talaga, makikita yan later on s Blood test at sonogram 😊