My boyfriend and I have never had sex and I am still a virgin. My boyfriend and I rubbed our genitals but he did not ejaculate in my vagina. Doctor, can you tell me if rubbing genitals can lead to pregnancy? Thank you, doctor.

My boyfriend and I engaged in external genital rubbing with only a thin layer of clothing in between. I want to ask whether external genital rubbing can lead to pregnancy. Thank you.