Hi,
Thanks for posting in HCM.
I understand your concerns.
Rubbing penis against your labia before sex during foreplay has chances of coming in contact with pre-cum (
pre-ejaculate fluid), in which there is chances of
pregnancy, although with less percent. Hence it is advisable to wear condom right from the start to end of the act when you start coming in contact with external genitalia.
Morning-after-pill has to be taken as early as possible after the act, within 72 hours after sex, to be effective. If your time has passed 3 days or more, then it is not effective.
It seems that you have not taken adequate precautions this time. But, don't have to worry much, as if you get your periods in time, then it confirms that you are not pregnant.
Next time onward, kindly take all precautions so that you will not land up in unnecessary trouble.