Uy, please see your OB right away, light brown discharge in early pregnancy needs to be checked, kahit paano, para ma-rule out kung okay lang talaga or may kailangan i-monitor. Hindi ko dapat sabihin kung normal o hindi, pero ang doctor lang ang makakasiguro. I know maraming moms sa circle ko ang nag-alala sa ganitong situation, kaya seryoso talaga 'yung need to get checked agad. Wag maghintay pa, better safe than sorry, lalo na 6 weeks pa lang kayo. Sending you all the best, and I hope lahat ay magiging okay.