I updated my phone and it did not back up. My last back up was 4 months ago, I lost all my pictures since then, can I get them back?
No, its lost. You should routinely import your pics to your computer as a backup, so that way if you lose your pics you can always sync it back via Itunes.
to import pics to pc http://support.apple.com/kb/HT4083
Retrieving data ...