Anyone out there had/having a boy and a girl?

Cara • Baby girl due December 15th!💜 Have a 2 year old son, my world💙💜 & an amazing fiancé💏
I am asking this as to weather people think their pregnancies were different from having a boy to a girl. /girl to a boy  some moms say 'I had terrible morning sickness on my daughter and nothing on my son? Or some crave different types of food l different babies? What's your opinion do you think it's just a myth? Or is it really different beig pregnant with each baby? Opinions?  Hmm...