Pregnant and I Start Work!

So I found out late last week that I am pregnant (4 weeks tomorrow) and I also start my new job tomorrow. Every day I am starting to feel a little more symptoms such as short of breath, heart beats are faster, and peeing a lot. I’m excited to start my new job tomorrow but I’m so worried that my symptoms will not allow me to focus during my first weeks of training. My husband and I were trying for a baby, but we honestly didn’t expect to get pregnant right away. Anyone have any tips how they got through their first trimester while working?