Lifespan of mans sperm

Gabi • Wifey 👰 animal obsessed 🐩🐩 TTC our first 👼 TWINS FINGERS CROSSED 🙏🙏
Hi guys I'm very new and still learning all the nitty gritty, what is the life line of the mans sperm ? 
I'm scared if we missed a day of baby dancing it will affect our chances but we did dance the day before???