Aw, nakakalarming yan talaga, mama! Spotting during breastfeeding can happen dahil sa hormones and uterine involution, pero it's really best to check with your OB agad just to be sure, a few of us moms had similar scares and mas nakatulong na ma-clear up agad by our doctor kaya walang worry. How heavy is the spotting, and do you have any cramping pa? Hindi ko alam kung normal lang siya or something that needs attention, pero hindi dapat i-brush off.