When can we expect our 1st hatch? Hard incubation usually starts after the 2nd to last egg laid. This would be 3/25. It takes approx 33-35 days. Today is day 27, so we shall hopefully see our 1st eyas hatch 4/27-29 in 6-8 days. It was colder this year, so they may have started incubation earlier. So we shall see.