Can you get pregnant from a dirty tissue?

Patient: Hi , my bf came on my chest area after oral sex, there was no penetration and nothing near the vagina. I cleaned it up with a dry tissue after about 5-10 minutes so most of it was slightly dry. I mistakenly used the same tissue I cleaned up with to wipe my vagina, however it was not a full wipe as I realized what was occurring and I quickly got a new tissue soaked it with water and re-wiped. Is there a possibility of being pregnant?