I drink coffee and have for years and i have 2 girls. I continued to drink coffee, however this has not interfiered with my fertility as i fell pregnant first go :)
My mum has 1 boy and 2 girls and has NEVER in her life drank coffee. My sister is a massive coffee drinker and has a girl and a boy..... Im secretly hopeing there is no truth in this LOL Although i drink my coffee with full cream milk!