Plan b pill ? Could this lead to pregnancy

Should I take a plan B pill if I tried to have sex and my boyfriend stuck the penis in a little but It didn't really fit but also clear fluid came out of his penis and I'm not sure if any got inside of me or not but ik when I touched his penis there was clear fluid on my hands and I’ve also been on depo birth control shot since July 31,2024.

( I was wondering bc ik it could contain sperm inside )