3Rd Pt pero negative

Hi mommies..anyone po na mkkpancin s postq mrmng slamat..just wonder lang po 25 days nakong delayed and pure breastfeed kmi n baby..minsan lng kmi magdo n hubby wth and without cntraceptives .. I tried yesterdy po and prtners and brand ng pt ko..negative po ung result ..wla nman aqng symptoms kung bakit delyed..my baby is 1year old.. Posible po bang ganto kpag frstym mom or unang panganganak? Meron po ba na ktulad skin?