blood spotting adakah normal atau tak ?

Hai mommies! Saya pregnant dah 12mggu 2hari and baru smlm perasan mcm ada bloodspotting like lendir coklat tp sikit je. And dh masuk harini 2 hari ada lendir coklat tu.. Kalau mcm tu kenapa ya? Adakah itu normal utk mommies yg preggy seawal 12mggu? Help i really need the answear why and is it normal.?