Yellow spit up (ebf)??

Stacy
Omg why is there yellow spitup?? She is 11 weeks old i have never seen this. She is nursing now and seems fine. No crying with it. She was in her carseat for one hour and ate an hour and a half prior to this. I dont know what to think. I snapped a quick picture just in case idk. Help! Yes I'll call the doctor too. Just curious what other mommies think. Thanks❤