Ahhh mama, salamat sa pag-share nito, totoo talaga na nakaka-anxious ang low lying placenta, pero you're handling it really well with the bed rest your doc advised! A few of us mums went through similar scares, and yung brown discharge especially when you strain or sit too long is something our doctors explained din, it's just the placenta being low and irritated, hindi automatically serious kung tumitigil siya agad once you rest. Your pelvic pain sounds intense though, so make sure na regular ka pa rin sa check-ups with your OB para ma-monitor kung tataas talaga yung placenta as baby grows, marami talaga nag-improve by second or third trimester! Just keep following your doc's advice, stay calm, take your prenatals, and rest when your body needs it, you're doing everything right na! Sending you healing prayers, mama, God's got you and your baby!