Sayang, I understand you're so worried right now, brown discharge in early pregnancy memang scary, but the fact that you've already seen a doctor and they've confirmed the gestational sac is a good sign. Since your doctor has arranged a follow-up in 2 weeks, that's the right next step, try to rest as much as you can and avoid heavy lifting or stress (I know easier said than done!). A few of us mums went through similar scares early on, and some turned out perfectly fine, so jangan give up hope lagi. For now, if the bleeding gets heavier or you develop severe cramping/pain, please go back to the emergency immediately, don't wait. Doakan the best for you and baby, and hopefully in 2 weeks you'll see that little heartbeat. Hang in there, mama.