Translation of "戻らなきゃ" in English

仕事に戻らなきゃ。

- I should get back to work.
- I have to go back to work.
- I've got to get back to work.
- I've got to head back to work.
- I must get back to work.
- I need to get back to work.
- I can't not work again.

シラカバの樹皮がよかった 戻らなきゃ

Birch bark might've been a better choice. We need to get back out, come on.