12 spheres spotted over NW Side of Chicago-light colored. Traveled NE.I am reporting a UFO sighting that my fiance and I saw while driving to a restaurant on Chicago's NW side (not too far from O'Hare airport). I saw a few light colored spheres in the sky above an airplane and my fiance confirmed it was there. I pulled over on Oak Park Avenue and took her camera to grab some photos. She counted 12 of these spheres, which seemed to be very high up. I was so busy trying to get her point and shoot Lumix camera to focus that I really didn't pay attention to any other detail about these things. I don't know if they all moved in unison or if they were all moving individually. They were traveling North East.My fiance says they may be balloons, so I checked the weather. The wind was blowing southwest at the time. Also, these wouldn't be planes because they were not only too high up but, I really don't think that many planes would be at the same altitude traveling North East (to Canada?).I called 311 (information) to make a report, and they transferred me to the Police. I was sort of embarrased so I asked them to just let the military know what I saw.The spheres eventually dissapeared into the distance and could no longer make out where they were.I have 1 photo of the luckily zoomed in capture of only a few of the spheres which I circled on photoshop with a pen. The camera had an auto focus which, unfortunately, couldn't find the things in the sky to focus on. So, out of the 10 or so pictures I took most were all blurry. I do have 1 picture or two that you can make out these things. I'd be willing to share the photos with someone who'd be able to help identify the objects.If you have any questions, feel free to reply to this email. If you can find anything about similar sighting of these, please let me know.