Mama, any unusual discharge or changes down there, lalo na with painful movements, kailangan i-check ng doctor agad, okay? Even if minimal lang, better safe than sorry at ganitong stage na.
A few of us moms dito experienced similar, and iba-iba ang reasons, sometimes normal, sometimes kailangan ng attention, so hindi dapat i-guess. Please call your OB or go to the hospital para ma-check properly. The baby's strong movements combined with the discharge, your doctor needs to see that together.
Take care, and keep us posted!