Mama, please see your OB or go to the emergency room right away, brown discharge with side pain sa belly, especially this early in pregnancy, kailangan ng immediate check-up para sure ka na okay. I know it's scary, pero better safe than sorry talaga. A few of us mums here have gone through bleeding scares, at ang best move really is to get the doctor to assess it in person so they can see what's happening. Huwag mag-alala muna too much, but do go now ha. Take care!