Rihanna said she wants a girl but she keeps having boys. So did she go the IVF route for her 3rd pregnancy? IVF allows women to choose the sex of their baby vs. having the same gender 2, 3, 4 or more times like so many couples have gone through... It's a personal choice, but the technology is available and doctors aren't changing anything! They're just able to determine what embryos have what chromosomes. It's simple.