You will be just fine. 3 weeks is the recommended time to leave ales in primary. It would be a bad idea to rack that to a 7 gallon secondary due to the amount of oxygen head-space in the large bucket. Generally you want to secondary in a vessel that is only slightly larger than your batch of beer to minimize air head-space.
Next up: Citra Pale Ale
Primary #1 + 2: Red Zombie IPA (Citra/Simcoe/Amarillo/Cascade)
Primary #3 + #4: Caramel Amber Ale (Chinook)
Bottle aging: Shmuck's Belgian Dubbel, Dry Irish Stout
Drinking: Centennial Blonde Summer Ale, American Wheat Ale