Ay, sis, I get it, ang anxiety talaga pag ganito! But please go to your doctor or nearest clinic first para malaman kung ano talaga ang situation mo, could be the breastfeeding itself na nag-delay ng period, or something else entirely. Hindi dapat mag-self-medicate without knowing what's happening, lalo na habang nagbabayad ka pa lang. Once doc clears things up, then you'll know what's safe and what's hindi. Kaya mo yan, mabilis lang yan ma-check.