My ducks are on Day 27 so I know they aren't supposed to hatch until tomorrow. However they started rocking last Thursday and were rocking pretty steadily so I went into lockdown a couple of days early. They aren't rocking nearly as much anymore and I don't hear anything out of them. Should I be concerned? This is my first duck hatch so I am very excited for these things to pop out. They are in a Brinsea and I have been misting them every once in a while these last couple of days because humidity is not staying very high.