Sayang, since your doctor dah check scan dan confirm baby okay, brown spotting kecil-kecil mmg boleh jadi normal especially with low placenta. BUT, since you're already having it lagi hari ni, better go back to your clinic or call your doctor dulu even if it's just to reassure yourself, sebab they know your full history dan condition. Follow what your doctor said, rest lots, jangan force yourself. A few of us mum friends pun pernah spotted at 13 weeks dan turned out fine, tapi setiap pregnancy lain, so your doctor is the best person to guide you. Take care!