Setting the call-to-action Pinterest Profile feature will allow you to add a Pinterest window on the homepage.
To do that:
1. Open the HOMEPAGE tab in your sidebar
2. Open the TEMPLATES tab
3. Click on Customize
4. Click on the Call-to-Action section to get a drop-down list
5. Select Pinterest Profile.
A Pinterest window will appear directly on the homepage
6. Click on Settings next to the Pinterest Profile field in order to change the window's position and alignment.
7. To connect your Pinterest page and set the window size, click on HOMEPAGE >> PINTEREST PROFILE tab
Please note that this option is available for premium websites only.