I want a son :(

I have 3 daughters and I'm really hoping this baby is a boy lol. I'm thankful for another baby and I'm praying that the baby is heathy, but I was wondering did you different gender pregnancies give u any clues?? I didn't get my positive until a couple days before af and it was very light, and that's never happened. Always super early positive. Pls don't judge me. I know I'm blessed and all, I just always saw myself with a son :)