Use wood stove in fireplae until the pipe is hooked up and chimney lined
I wouldn’t. If this is an insert, smoke will “leak” out around the insert and the fireplace opening. 

If there’s a problem and it catches fire, the insurance company will void your claim because it wasn’t installed properly. (The Fire Department always wants to know the cause of the fire.) I’d get a Building Permit too. Then you’ll get an inspection and know it was installed properly.