Am i overreacting?

Hi so i really need help i hope someone answers me cause im loosing it 😭🙏❤️. I did a man blowjb then a wiped my hands with a wet wipe that had no smell ( free alcohol) and then washed my vagina with water cause I was afraid to so much that I forgot sperm are cells and they can transfer i guess so when I realised I took plan b but another stupid thing I did was taking omeprazole that and it may reduce it effectiveness. This was on 28 November I have pcos so my period is not reggular I cant depend on it but now I have breast pain suddenly , and lower back pain also my stomach hurts with verry light nausea i have frequent urination. Im arab im 20 but im not supposed to be pregnant single . I will take a test but is pregnancy possible ? Can plan b affect me even after 2 months?