What Are The Chances Of Getting Pregnant Without Penetration?

My friend and I were fooling around. We both had no clothes on and he was rubbing his penis around vagina and it was wet but he didn't cum until later and when he did he did it on my back. My ovulation date is December 9th and this occured on December 4th, I am getting cramps today. Could I be pregnant?? If so I need to know cause I can take plan B right now.