Apparently if you want a girl, you need to have sex 3-4 days before you ovulate and don't have sex again until you know ovulation is well and truly over. Girl sperm lasts longer but is slower so needs time to get there. If you have sex closer to ovulation, the boy sperm basically pushes the girl sperm out of the way. Dh work mate has it down pact. I am astonished at how they have managed to do it with 6 kids. It's crazy. His wife eats a 'girl' or 'boy' diet too apparently.
Look into the Shettles method if you haven't already. A guy DH works with swears by it and said they pretty much decided what they wanted each time with 6 kids! Definitely worth a shot!
@massmomma16, ahh I want a big family because I grew up with 4 siblings...and my fiancé has a great job so we can afford it...I’m thinking number 5 or 6 no matter what.