You can link pictures from your phone. Where you type in, look at the icons on that window on top. You should see a paper clip icon. Click that. You then have 5 entries to load. When you click the photo you want, and are happy with that, click upload ( near the right side of window. ( it can take a few minutes) when it no longer says. "Uploading photos" click "close window) down at the very bottom. Might have to scroll down. Then click "preview post" if you see your photos, then click "post".
Hope that helps