Nervous to start trying

Is it normal to be nervous about pregnancy? I want a baby very badly but I have anxiety and it seems I worry about anything and everything negative about pregnancy. Like the morning sickness... I hate throwing up and had a phobia of it when I was younger. And I also worry about how flexible/understanding my job will be.

Hubby says I need to stop worrying and take a leap of faith!

Does this mean I'm not ready or is it normal?