Mama, this is really something you need to ask your OB-GYN about ASAP, hindi ko kaya sagutin ito properly kasi medical decision talaga ito for your baby and you. Placental grading is serious, so please don't wait, go to your clinic or hospital na para ma-check mo properly. Sana okay lang kayo both, but you really need your doctor's guidance on this one. Sending you strength!