I had protected sex on 5 october and my periods was late for 7 days ie oct 19 . The periods was light and was for two days after which only some blood in between came. Had a pregnancy kit test after period and was negative. Now after the period there is yellow greenish color for discharge when its dries on panties. I am taking tretiva 10 mg for acne problems. Can i be
pregnant or is there any infections or is it because of the tretiva.