Day 20..you still have time..leave them in there. Give them time. Don't be grumpy. :/
I will leave them in until my other eggs arrive and have settled, so at least until Saturday. It's just from he top everything looked peachy keen. And I should've checked the underside too... It's my own fault, I had a serious humidity drop on day 10, lost 3 eggs that day, I guess it did more damage than I thought.