Morning sickness was terrible and crave more sweets then ever. I know u can't really tell.
Position really has nothing to do with gender. Only an ultrasound or birth can really tell you.
I am pregnant with a boy and almost all of his movements have been low. He's never kicked my ribs or really had any kind of jabs above my belly button. I think the high/low thing when it's comes to girls and boys is just a myth
Mostly is you're carrying all around its a girl. If you are carrying in front its a boy. How bad was your morning sickness and do you crave sweets?
At 19 weeks the top of your uterus is still around your belly button so you still have some time to move up. Not sure about the difference between girls and boys and carrying high or low.