Is It Advisable To Take I Pill Post Unprotected Sex?

hi doctor, I am 25, last night I was with my partner.we were pleasuring each other by touching each other private parts. my hand got sticky with his sperm thn I went to washroom n wash my vagina part which he touched . During cleaning, some dark white spot comes out. Then we tried to do sex bt we were not having precautions so we stopped after trying a little. so now m confused whether I should take ipil or not