Hello dear I understand your concern Just be relax. Pregnancy is not possible as you had non penetrative sex. To become pregnant, full penetrative sexual intercourse or penetration up to vaginal introitus is required during the fertile phase of the period. I do not think there is requirement of the Plan b pill. Just wait for the period to come. Avoid stress as it cause delay in the period. Take healthy diet, do regular exercise like walking and running, drink plenty of water. Hope this may help you Contact HCM for further health query Best regards Dr. Sagar