I'm on the last day of my period & have an appt tomorrow bc i think i have an infection. do i need to reschedule if my period is faint in the morning?

Keep Appointment: If bleeding is light, the health provider can still do the necessary tests to evaluate you except for possibly being able to take a sample and look under the microscope but all others should be adequate. Even a pap smear is possible if bleeding very lightly. Your condition sounds as though being seen quickly is very important--do not delay or reschedule--your provider will understand.