Drinking Coke Zero and GIRL swaying!

I would just like to know does drinking caffine help sway boys? I know that the guys are meant to drink caffine an hr before bd to help the boy swimmers but does it also help us woman concieve boys too or is it more the fact that caffine can make it hard to concieve? I have just read alot of places to avoid caffine in girl sways but i am not sure why i am meant to avoid it.

Supposedly caffeine interferes with calcium absorption and that is why it is suggested that you avoid it.

That having been said, the Oxford study found NO difference in gender between moms who drank caffeine and moms who didn't, and I ~personally~ think caffeine is ok for a pink sway.