When to try to conceive?

Courtney • Married to the love of my life and trying to conceive our one baby to complete our small yet mighty happy family. ❤️
So my most fertile day of the month is November 5th with a 33% chance. 
​My question is, am I more likely to conceive if I have sex the day before or the day of? I know sperm lives in you longer than your egg is released. 
​Confused!! Please help!!