Can being too tired be harmful?

So I’m 15 weeks and 4 days, my church had an all day event outside yesterday. I was there from 8am until 3:30pm. Came home to rest until 6:00 and then had to go somewhere from 7pm until 9:45pm. I was EXHAUSTED, I had a pounding headache. I felt like I wanted to pass out/ throw up/ and a pounding headache. This made me super worried about baby. As soon as I got Home, I drank milk and went straight to sleep. Woke up a little tired and headache went down significantly. Could this have harmed the baby?