Sayang, brown discharge dekat gestation ni mmg bisa be a sign something's starting, tapi kena confirm dengan doctor sebab bisa juga just normal. Jangan tunggu, call your hospital or go to L&D sekarang juga untuk check, especially since you're so close to due date. Better safe than sorry, especially first baby! A few of my mum friends had similar signs tapi turned out different things, so doctor kena assess you properly. Let me know ok!