Gender -Carrying High or Low

Do you think it's pretty accurate to say if you're carrying high it's a girl or if you're carrying low it's a boy? I was told I'm carrying low but they told me there was 80% chance I'm having a girl (she was being very stubborn during our ultrasound). My friend also said she had been carrying high, but she ended up having a baby boy. I know it won't always be the same, but does it apply for majority of people? Just been having it in the back of my mind, what if my baby girl is actually my baby boy? My last ultrasound isn't until a little while longer so I'm going crazy since I've already been buying for a girl. 🤔😩💖