Can I get photos or videos back off my iPhone 4s after being deleted?

A while ago I put all my photos and videos on to my laptop and therefore deleted them off my iPhone 4s.

However, my laptop has been stolen therefore losing photos and videos with a lot of sentimental value (I know I should have backed it up double time and I'm living with the consequences).

When I got my iPad it appeared no photos from iCloud loaded on to my iPad other than the ones I had not deleted off my phone. I'm devastated as I had lots of videos of my Nan and she passed away a month ago so I'm willing to take any suggestions anyone has.

There's no way to find back your deleted photos, unless you find your laptop. Did you install a track your laptop software or app or your laptop?