Can pre ejaculate get you pregnant on the day you ovulate after taking plan b 22hours later?

Low risk scenario.: Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. Pre-ejaculate may contain large amounts of viable sperm (less common), smaller amounts of sperm that are dead or alive or no sperm. There is potential for pregnancy with pre-ejaculate.