I observed 5-7 objects in the sky while I was outside for a smoke break. I had a sense they were UFO's (I have had previous encounters with them). The objects stayed in the same place. I kept going outside to check on them. When I went outside again around midnight they were gone.I was alarmed. The sighting brought back fears I had from previous encounters. After the birth of my 6th child, the medical doctors wanted to study my blood in order to research components of my blood that would be able to help other mothers with the length of time they were pregnant before delivery. Maybe the aliens are interested in my blood for the same reason.