Train tracks or horse galloping?

G • Mum to a beautiful 9yo girl 💖 and handsome little 6yo boy 💙 ...baby no.3 on the way 🙏🏼🥰 Due 13th March 2023 🩵

I saw a video recently on TikTok that if your baby’s heartbeat sounds like a train on the tracks it’s more likely a boy and if it sounds like a horse galloping then it’s more likely a girl..

How true is this? Has anybody else heard this?

I can’t remember the sounds of my 1st (girl) and 2nd (boy) but currently on my 3rd baby and was told he’s a boy. Defo sounds like train tracks 🤭