Chances of pregnancy- I'm abroad

I have limited access to a morning after pill as I am in Central America studying abroad. I'm going to give the details, I know there is always a small risk, so you can skip that part in your response. 
I had sex the day my period ended. I was still spotting that day. He pulled out, we didn't wear a condom and I'm not on birth control. How likely do you think it is that I will end up pregnant? Should I go through the massive (and a little embarrassing due to having to make an appt with a doctor through my program coordinator) process, or do you think I'm safe? Let me know, please!