faint line PT after 3days Negative

hello poh nag PT poh ako before my expected period kz lge sumasama pkiramdam ko at nhihilo at sumasakit ulo ko cramping and cravings tpos lumabas faint line then after 3days still just right before my period nag PT ulit ako then negative nman ang lumabas. ngaun i am 1 day delayed.. sobrang early poh ba ako nag pt? anu poh ba dpt gawin? thank you