Old wives tales

I learned a lot about old wives tales throughout my pregnancy. 
A few were true for me:
1.) I was carrying low (which meant I was having a boy)
2.) Girls cause morning sickness (I never felt sick)
Others were false:
1.) The 1st baby -especially boys- arrive after their due date (Brex was almost 2 weeks early)
2.) Heartburn means baby will be born with hair (he had a head of hair, but I didn't have heartburn)