Hello, Thanks for sharing your health concern with us. This spotting is most likely due to the withdrawal effect caused by the emergency contraceptive pill. The pill contains high dose of progesterone and hence creates hormone imbalances. You are safe from conception even without protection around the menstrual period since ovulation occurs two weeks prior to the onset of the next period and this is the fertile phase. However, since you have noticed the spotting after intercourse, please get further evaluation. If the ovaries are prolapsed into the pouch of Douglas as is often seen with a retroverted uterus, you can feel sensitivity during deep penetration. Hope this helps.