Chances of becoming a unwanted pregnancy or not??

Patient: Hi,I am haniya Me and my bf romance on 11th feb in a seperate room.He and I were fully naked and he sucking my vagina and fingering a lot.After sometime he rub his dick on my vagina a lot i wants to ask you should i get pregnant by juxt rubbing the dick on my vagina and i m fully also not sure that his cum ejaculates one drops on my vagina but after few seconds i clean my vagina with tissue paper how many chances of getting pregnant????? Plz tell me i m fully scared…Help me

Symptoms: Very low chest pain and also a pain in back