Why is my hen laying different color eggs?

[JustAChickenLoverOverHere]

Yesterday I went to check my 11.5 month old American Game pullet to see if she had laid any eggs. She did. Two. When I put them in the egg carton with her other eggs, I noticed they were slightly, but noticeably, different colors. Her first couple of eggs are a nice white, but the eggs she recently laid have a pink shade to them. Not sure what could’ve cause it or if it’s something to worry about, but I just found it odd. Here’s a picture:

 

[JustAChickenLoverOverHere]

She started laying about 2 weeks ago. Not sure if that has to do, but for reference.

 

[MysteryChicken]

She started laying about 2 weeks ago. Not sure if that has to do, but for reference.

My Red JungleFowl/American Game cross hens lay white to tinted, so I think it's normal.