How do I prevent blood ring in hatching eggs left outside?

[Snorlaxzzz]

I live in zone 9b and the temperature now reaches a high of 102 degrees. I have allowed my hen to lay in her nest without collecting her eggs so she can go broody, but after candling the first two I noticed blood ring. I’m guessing the heat has made the eggs begin development but then died soon after because of the temperature drop at night? My question is how can I prevent future eggs from developing before my hen goes broody and lays on them. Should I collect them daily and then return them back to the nest once there is enough for her to lay on, or should I play it safe and use an incubator?

 

[DobieLover]

I have allowed my hen to lay in her nest without collecting her eggs so she can go broody

This rarely works. Hormones control broodiness. Some hens will never go broody.

The majority of the hens I have kept have never been broody.

You can try building a ground nest in the corner of the coop and leave fake eggs there. Collect all fresh eggs daily. If you have more than one hen, one of them may go broody and claim the nest.

 

[Kiki]

I wouldn't collect eggs for her to sit on UNTIL she actually goes broody.
When and IF she goes broody collect eggs for a few days, bring them inside and keep them cool/room temp then give them all to her at once.

 

[DobieLover]

then give them all to her at once.

AFTER you mark them so you can REMOVE newly deposited eggs into her nest to prevent a staggered hatch.