Mama, I'm not 100% sure what you mean by "residue", baka infection, discharge, or something else? Either way, please check with your OB agad, lalo na if may unusual symptoms like itching, pain, or weird smell, kasi pregnancy changes everything sa body natin and it's better safe than sorry. A few of us mommies learned the hard way na what seems small can actually need attention during pregnancy, so don't hesitate to message your doctor or go to clinic, okay? Take care po!