We all have to do what is best for our personal situation.I just figured I'd mention it, because people are somewhat divided on hatching pullet eggs. I didn't have any choice, as I was specifically hoping to get fertilization remainders from my foxed roo. Other than a bit of worry with baby #1's zip, it was totally textbook, as this thread will show.
While a general rule is that pullet eggs shouldn't be incubated till approaching full size and young roosters should be given a time so their swimmers can be more reliable.
I had mink attacks several years ago where every bird in every building, but one was killed over the course of a week. I hatched every egg I could get including from pullets and I even cut eggs out of some dead hens.
The end result was that the birds that hatched from small pullet eggs, when mature, never laid eggs as large as the standard for the breed.