para mabuntis, dapat ay fertile or nasa ovulation period ang babae. you can use a period/ovulation tracker app.
if lets say, nagfertilization na, malalaman na possible na buntis if delayed.
to confirm ang pregnancy, do PT.
if negative, repeat PT after 1 week, using first urine in the morning.
if negative talaga after ilang PT and trying to conceive, you can try on your next ovulation period, which is next month.