Is there a chance that I am pregnant?

Patient: I had the implant fitted and then started a normal period, 12 days after having the implant fitted i had unprotected sex. A couple of days ago (2 weeks after sex) i had 2 days light bleeding and it was the normal colour of my period, i haven’t had any normal pregnancy symptoms but was wondering if there was a chance i might be pregnant?

Symptoms: 2 days light bleeding two weeks after unprotected sex

Doctor: