Sabar ye mama, brownish discharge memang boleh jadi normal especially kalau tak ada sakit atau gatal, sometimes our body just releases old blood macam tu throughout pregnancy, especially after check-up. But since you're already worried, best to message your klinik again or pop in to confirm je, just for peace of mind, a few of my mum friends went through the same and the doctor reassured them straightaway, so don't stress yourself lah. Yang penting baby ok dari scan minggu lepas, that's the good news