MUCUS PLUG BA?

Hello mga mommy! I am 40weeks and 1day now. May check up ako kahapon and pinagprimrose ako ng OB ko, insert 2capsule into vagina simula kahapon at kagabi. And now may lumabas po na parang sticky or parang sipon na color white and brown na parang blood. MUCUS PLUG po ba yon? Please answer thank you.