How to find the sex of a baby before delivery?

Anyway to find sex of baby without usg scan?...I heard about a chinese calender to find sex of the baby...anyone tried that out..
please post any ideas you have or experiences you had..

...before pregnancy? Like before the baby exists in any form?

Sonogram is the usual way to determine a baby's gender but even this isn't 100%. When my wife and I went in for our 20 week level 2 sono the doctor was only 90% sure we were having a girl. Amniocentesis should be 100% accurate though anyone would be foolish to have this test just to determine gender since there is some risk of miscarriage from this test.

There are lots of folk methods to determine a baby's gender. These are correct about 50% of the time.

Women pregnant with girls tend to have more morning sickness than when pregnant with boys so sometimes women guess the gender based on this. I'm not aware of any scientific studies to see if experienced mothers are able to predict their baby's gender more than half of the time. My wife didn't have a moment of morning sickness so she thought we were having a boy but this turned out wrong.

oops...sorry delivery...
well I m aware of ultrasonogram and amniocentesis(its ridiculous to do amniocentecis to know sex)...
I want to know if anyone have any alternate ideas or knowledge..or experiences..

well mi mates mum sed if your carrying low then its a boy and high if its a girl then ma mate whos 15 was carryin low and shes havin a boy so have a look hope I helped ..x