For those of you who have been pregnant before, is getting dizzy in early pregnancy normal?

Micah

It happened for the first time about 45 min ago and hasn't gone away. I am 7 weeks today and ended up needing to lay down. I read that it is normal because of the blood supply changes, and your blood pressure can drop. But I was hoping to get some experienced ladies own experiences. It came out of no where pretty strong and has just been consistent since it started 45 min ago. Thoughts?