Should I purchase a. 7 or 14 day pass?

Hello,

I'm traveling to Japan for the first time in September. I will be arriving in Haneda airport. I'm not sure if I should get the 7 or 14 day JR Pass. Here is my itinerary:

Haneda Airport >> Tokyo (6 days)
Tokyo >> Takayama (1 day)
Takayama >> Kyoto (3 days)
Kyoto >> Osaka (3 days)
Osaka >> Tokyo (1 day)
Tokyo >> Haneda Airport

Thank you,
Lori