Hi, I Had Got The Implanon About 3weeks Ago, And

Hi, I had got the implanon about 3weeks ago, and 2weeks after I had intercourse! I noticed that after I had a white-creamy discharge! But I payed no attention to it cause it happens every now and then. Then a couple days later I noticed it started changing to a brown colour and then a bloody red! Right now it looks as though its a dark brown colour, almost as though I was starting or finishing my periods.
Is this normal or?