JR Pass 7 or 14

Hello,

I will be in Japan 14 days visiting my friends and a little bit sight seeing on my own.

Could you please suggest from the planned itineraries that I will be visiting, what JR ticket should I purchase: 7 or 14 days?

Day 1 TOKYO/Narita Airport.
Day 2 Sightseeing in Tokyo.
Day 3 Tokyo- Kobe
Day 4 Kobe-Kyoto/Kyoto-Kobe
Day 5 In Kobe
Day 6 Kobe-Nara
Day 7 Nara
Day 8 Nara -Hakone
Day 9 Mt Fuji
Day 10 Mt-Fuji -Tokyo
Day 11 Tokyo-Nikko
Day 12 Nikko -Tokyo
Day 13 Tokyo
Day 14 Leaving Japan

Thank you.