I’m new to this, when is a good time to take a test?

It’s been 11 days.

My doctor tested me about 4 days ago because I had the flu and she just wanted to check but I don’t think it would of been positive that early.

When is a good time to take a test? I heard 2-3 weeks after trying. Just wanna be sure I’m kind of (every) excited ☺️