Fear of throwing up, help!

I am wondering what morning sickness will be like when pregnant because I have a huge huge huge fear of throwing up, ever since I was a kid, I don't know how to get over it. I'm not normally a vomitter. I can count on my hands how many times I've been sick in my life, I'm really really scared and seeking someone to calm me down and tell me it's not as bad as I'm expecting