Peak Day vs Ovulation Day

Tasha • Praying for our rainbow baby.
Is there a difference? I've been tracking my ovulation and furtility week cm but I can never figure out what day is best to BD on. I know BD every other day is better, for us anyway, so how can I make sure to BD on the right day - peak or the day after? Can anyone shed some light on this? Would reeeeally like to conceive our rainbow baby soon! Thank you!! 😊🙏🌈