I too am on day 18. I'm not sure if they are alive or not to be honest. I am just waiting to see if they do anything. I hope some of them make it as they are silkies. If not I will have to try it again.
It's silkies im waiting on too to hatch Monday, ijust hope everything goes ok. Who knows, i may wake up to a nice little surprise although if i miss the hatch ill be upset, which is y i have the parents rigged with the video camera for when i am at college Monday lol