Guessing gender by ovulation?

Marli • Lottie Mae norm 3-23-20. Liam Thomas🌈 born 4-7-17. Angel baby 5-4-16. Hubby & I married 11-1-14. Have two Pomeranian `babies`.
So, I was looking up how long the egg is around after ovulation. And how long the sperm can live. I had sex 3 days before and 2 days after ovulation. I know when I ovulated. I tracked it. Felt ovulation pain. I know when it was. 
So if the egg can only live 24 hours past O. 
And male sperms die off quicker than female. 
Then that would mean chances are very good it's a girl, right? 
I had to have gotten pregnant the sex from 3 days before. Because 2 days after would've been too long. And from what I've read male sperm only last 24-48 hours. 
Can you tell how much I'm chomping at the by to know? Lol.