How to prevent your unborn children being LGBT

Being gay/trans is not a choice for you ,but it's a choice for your parents.

(^A chink bitch wanted to have a son ,after she used some "change gender pills"[could be hormone]while pregnancy,she got a intersex baby.)

I found a lot of causes could lead to fetus being gay ,the intrauterine hormonal theory is most credible.
https://en.wikipedia.org/wiki/Prenatal_hormones_and_sexual_orientation

Don't choose emotionally unstable female partner.

As Ellis & Cole-Harding (2001) outline, the chain of events in prenatal stress affecting brain sex differentiation appears to be that stress causes the mother's adrenal glands to release high levels of stress hormones into the blood system, substantial proportions of which cross the placental barrier and interfere with the fetus' production of sex hormones temporarily, most notably testosterone.

Don't eat food grow by pesticide,eat organic.

Avoid any endocrine disruptor.
(Which is almost impossible in modern nefarious society,except you are extremely rich.)