how does Humira get delivered?

Like do you go to the pharmacy and pick it up because my doctor apparently never prescribed it to the pharmacy. I make no mistake me and my doctor defo decided to start Humira. I'm just confused because when I went to the pharmacy it wasn't prescribed?? Like I'll call the dermatologist on Monday because they are only open Mon-Fri but I was just wondering if anyone has had a similar experience. I have never been more confused??