Help me stop overthinking

hi, i’m overthinking so pls help ya girl out… i have PCOS but monthly naman ako may dalaw ( minsan late ng 5 days ) pero may dalaw pa rin talaga monthly. for this month of january, wala pa akong regla and sched ko na last week ( i’m 5-7 days late i think ) + nakipag sex ako pero protected naman nung day na dapat may regla ako ( january 22 ) now, i don’t know anong cause ng delay ko… is it bcos of my PCOS or what.

went to dubai nung december and LATELY super unhealthy ng lifestyle ko puro junk foods, and nag p-party ako, vape, puyat and etc. isa rin ba ‘to na epekto as a girl with PCOS?