Blood in yoke?

[Hairball1]

I started to cook one of my fresh eggs for breakfast and when I broke the yoke it appeared to have a lot of blood it it? Not just a speck. Is this something I should worry about

 

[Eggcessive]

It is something can happen and being a one off occurrence. But I had a pullet who did this occasionally, then regularly, and she eventually stopped laying altogether. Can you post any pictures of the ege?