Two, four month old cornish x rock laying their first eggs. Soft eggs. No issues with the one bird, but the plumper dear had difficulty and the egg broke. Yolk came out whole, but I saw what I think was the remainder of the soft shell sticking out her rear. I washed her butt to clear mess and now she's walking around eating (Cornish Rock). Seems okay and she has stopped straining. I've read the posts that say "get it out", but I think it may have passed already and her tail is up again. What signs will indicate trouble related to broken egg retention? They get oyster shell and split corn and they are free range for the rest and apparently very active for their breed.