Ay, mama, that's something you really need to check with your OB ASAP, especially at 37 weeks, kasi important malaman kung anong klaseng discharge yan para sa baby mo. Hindi ko dapat i-guess kung ano yan, pero alam ko na some things need a doctor's eyes lang talaga. One of my mum friends had something similar and ang dali lang ng checkup, so don't worry, walang hassle, kaya lang kailangan ma-confirm. Call your clinic agad or if you feel uncomfortable, go to the hospital na lang, okay? Better safe when it comes sa baby.