There's no chances of being pregnant unless he ****ed in you.
The chance of pregnancy is vanishingly small. A good deposit of semen in the entrance to the vagina would be a different story.
Do you know about the "fertile window", cycle days 8 thru 16 of 28? Download a period tracking app to learn more, and correlate its findings with your physical signs of ovulation - fertile mucus, ovulation cramp and cervical position.