How are your eggs

[bad monkey]

Does it mean anything negative when a birds eggs get bigger?
Many of my chickens lay Jumbo eggs, 2.5 ounces on the American standard but I have 1 bird that has been getting bigger.
The egg in the picture was from this morning. It's in the incubator with the rest of her big ones and I'm wondering what the odds they hatch are? Is there a breed that those happen in? Should I be concerned about her health? It took her 2 and a half hours longer to get that thing out, it won't fit the hole in an egg carton and if it did you still couldn't close it. That's 1 of 4 but the other 3 aren't that big.
Thank you

 

[Pork Pie]

Have you cracked one of her eggs recently ? If it's a double yolk egg, it may be better not to incubate it. I have one hen that lays big eggs and they're always double yolkers. I'm not sure it has any adverse health effects - I've had other birds lay double yolkers and I'm not sure there's anything that can be done.

 

[bad monkey]

I think the first one may be to porous to hatch when it makes up my mind I will break it and get back to you. I have had double talkers and with the eggs these birds lay the doubles are pretty obvious, it's hard to tell bottom from the top, but these are pretty obvious. I did candle it and it looked to have 1 took but these eggs are hard to see into. Curiosity would kill me before I broke that egg. Finding 1 yolk may make me suicidal, the need to know trumps the need to know now if you know what I mean.
The parent birds are a genetic mess, I've been trying to figure out what they are since I got them. My roo looks like a Columbian rock, the hen this came from is 4 toned brown to Orange. I'm handling the one I don't expect will hatch tonight and making a descion on it then, if it's as I expect I'll crack it. I need really dark to see anything in those eggs.
Thank you