Wondering if I am pregnant.

Hi guys, dec.1 ang last of first day menstruation ko nag end ito ng dec.7 then we make love on dec.17 ayun lang at wala nang sumunod im expecting my menstruation on or before of jan.1 but jan.3 wala paden so I used pt and nag 2 lines sia but its faint. i am now 5days delayed and ndi pko ule nag PPT. am i guys a week pregnant now? thanks in advance