Momsh, withdrawal is not a reliable contraceptive kaya yes, possible ka mabuntis, marami sa amin na nag-rely lang doon at biglang surprise! Three days delayed with belly pain ay dapat i-check mo na with your OB para malaman kung ano talaga, lalo na na kailangan mo ng proper family planning advice ngayon since 2 months lang ang bundles mo, your doctor can recommend options na safe pa rin if you're breastfeeding, kung yan ang ginagawa mo. Hugs, momsh, I know stressful ito especially ngayon na baguhan pa lang, pero better to know agad!