Geritol..stupid question.

Marlee • Married💕 5 year old son💙 21 month old daughter🌈 🤰 with #3🌈

I am seeing people say that geritol helps conceive boys. Is that true? I’m sure you can get pregnant with a girl right? I don’t understand how it can only help conceive a boy? Thanks for helping me with my stupid question ladies!