I hope this is the last question for a while I just got my shipped eggs, and have placed them w/ pointy end down to sit. 1) My question is that I have two that are pretty oval. How do I know which end is up? 2) Also, this is probably also a dumb question, but when candling them, I keep them with the pointy end down? 3) AND, I candle today to check air cells, right? Are there any pics anywhere so I know what the air cell should look like??? Thank you so much!