Lost pictures from restore backup button...help?

hi everyone,

TOday I tried to back up my iphone to my husband's computer to back up to my Hd. I was soooo stupid but to make it short and clear I restored my husbands iPhone stuff to my iPhone so it replaced everything to my iPhone and I lost all my photos and videos of my children! Is there any way to recover it? We tried to go on iCloud but I don think I set iCloud so the photos weren't there...ugh all the half year worth of videos..:(

does anyone know any other restore options?