Don't open the bator you let out too much humidity. Is your incubator still air or does it have a fan? What is your temp & humidity at? My first hatch was 100%. After that one things went a little down hill. I had 2 hatches with a total of 30 eggs only give me 2 chicks. My next one I tried some of my own and got 14 out of 23. I'm getting a little better at shipped eggs now to. Last batch out of 6 duccles eggs i got 2 and out of 6 BCM I got 4. Which is the best I've had with BCM's. But I did have broodies on them until day 18 when more then one hen wanted to hatch the eggs thats why only 2 duccles, one got crushed an the others never developed. So just wait. Good Luck