Hey mama! Yes, possible talaga kahit exclusive breastfeeding pa, ang lactational amenorrhea is not 100% reliable, lalo na pagbalik na ng regular activities at sleep schedule. A few of us sa mom group namin got pregnant while nursing dahil hindi consistent ang breastfeeding timing or nagstart nang mag-supplement. Best talaga to talk to your OB about family planning options na safe while breastfeeding, kasi may available na methods na okay gamitin during this time!