Ay mama, kahit common ang discharge sa pregnancy, ang dark brown ay kailangan i-check ng doctor talaga, lalo na kung first time mo or may kasama pang cramping or pain. Hindi ko dapat mag-guess kung normal lang or may kailangan i-address, kaya please contact your OB or go to the clinic agad para peace of mind mo. A few of my mum friends na nag-alala din, mas nag-relax sila pagkatapos na-check ng doctor, and alam nila kung ano talaga ang nangyayari sa kanila. Mag-message sa OB mo or call the hospital, they'll know exactly what to do, ha. Sending you hugs, hoping it's nothing to worry about.