Am I pregnant?

I (F17) had sex on the 13th using a condom. It didn't rip or anything. I just learned that I had also ovulated that day. My period is currently 5 days late. I found out when it was 2 days late and I've been incredibly stressed since finding out. Im hoping it's just stress. I don't have access to tests until tomorrow. Is there a good chance I'm pregnant? Or is it very low since we were safe? I'm desperate for some opinions. I've also been drinking cilantro tea.