Soufflé, I agree what the rest said, especially oisterbaby's mum comments. The hb's side decides the gender. So if they want boy, blame it on their sperm. My hb's family side mainly are boys, even his cousins'.
I was lucky to have a gal for my 1st. Maybe becos I conceived her via ivf. Subsequent natural pregnancy I got my boy and this one oso a boy (via natural too). But my hb this round very much wanted a gal. I told him even if we try for a 4th bb, very likely will be a boy again cos is his genes!