hello doctor, i have PCOD, i have done IVF 6months before, but i had negative, after 2 months i had my periods with full pain. now from past 2months my periods is regular. today is my period date, i have some sort of tightness in my lower abdomen stomach(uterus). i woud like to know whether i m pregnent or not. i have nausea, gastric, heartburning also from past 3 days. when i need to test.