This is our first go round with incubating eggs. It is day 9. Day 8, out of 12 eggs, I only saw 2 with movement and air sacks. Others have small blobs with air sacks but no movement, one has what looks like a line around the egg. Any suggestions? Some also have spots all over. I see on a previous post that is a sign of bacteria, so after I candle this afternoon I will throw that one out.