Hi mama, nakakauwi talaga ang delayed period lalo na after stopping pills, ang aming cycles need time to regulate ulit, kaya normal yan for a few months after! Since kayo naman hindi naman sure sa timing at negative na ang PT, baka mas better magpa-check ka sa OB para ma-rule out other causes like hormonal imbalance, or para ma-ease your mind na talaga, dahil ang stress mismo ay pwedeng mag-delay pa ng period pa. Maraming mum friends ko nag-experience din ng ganyan after stopping contraceptives, kaya you're not alone, but OB visit talaga ang best way to know for sure what's going on.