so me and my girlfriend had unprotected sex for about 2-3 minutes. Before i even penetrated her i felt precum in my pants. After 2-3 minutes we stopped because we did not have a condom. i tried being really careful so i bought her the morning after pill (the one with the two pills). she took the first one within 24 hours, and the second one (supposed to take it 12 hours after) well she took it about 18-20 hours after. What are the chances of my girlfriend being pregnant?