Possable Implantation Bleeding

Patient: I am not sure if i had my period this month but i had some bleeding on the 10th and then it stopped on the 13th and now today on the 23rd i started to get creamy brown discharge i see it when I wipe after going pee, what can this be i have taken a pragnice test and it was nagitive so what should i do? should I wait a week and take another test or should I make apoment and see my doctor?

Symptoms: Brown discharge after going pee when I wipe only