I have four boys and am ttc a girl from May.
For the boys I didn't try any method they just came along but I believe that libido rises the nearer to ovulation you get so maybe that's the reason.
I think the shettles method makes sense so I tend to believe that if you BD on O day and the day before the faster male sperm get there before the slower swimming female producing sperm.
Also get DH to wear loose fitting underpants for the month before you try and sponge his bits with a cold sponge before you BD, apparently this raises sperm count which will contain more male producing sperm to reach the egg first.
I don't know which supplements you should take, maybe somebody else will.
Good luck TTC your baby boy!
