Discharge after sex

I had sex for the first time on Wednesday. I didn't bleed when we did it but I did the next day, it was really light and I almost didn't even notice anything. I also noticed I smell differently down there. Could that be because of the blood mixed with normal discharge and it just needs to heal up or could it be something else? We used a condom but we did rub against each other for a few minutes before we moved on without a condom. I have an appointment with my gynecologist on Monday but I was just wondering if I should be worried?

Thank you!