First time pregnant, need help easing some anxiety

Hello, I am 35 years old and my boyfriend and I decided in September to start trying for a baby. We are both thrilled and a bit surprised that this happened so quickly. I am about 4 weeks along and I am so nervous about telling people/ anything going wrong. Is this normal? My first prenatal appointment is December 29th and I am so nervous about it. I had to tell some people at work because we work with hazardous chemicals and they are all telling me to be careful about who I tell, etc because there is always a risk of losing the baby within the first trimester. This clearly doesn’t help with my anxiety. How do you cope with this wait and uncertainty? This is my first pregnancy.