Sabar ye, mmg boleh jadi normal after miscarriage sebab rahim still healing, a few of my mum friends went through the same thing after theirs. Tapi kalau keluar darah after intercourse bukan first time for you, better check with your gynae just to be sure everything's okay down there, esp since the bleeding pattern changed (the brown discharge for 16 days tu pun agak lama). Jangan risau sangat, but get it checked lah, better safe than sorry!