Plesse help ease my mind

Brooke • Expecting my rainbow baby ❤

Hey Guys, so I had an ultrasound today to take a better look at baby boys kidneys as he was being a little bit stubborn at my 20 week scan. They turned out looking perfect. However, the tech scared me a little bit while taking several picturea of his head. I asked her why and she told me that his head was reading one week bigger than the rest of his body. I am 26 weeks and his head is reading as 27 weeks. She told me not to be too concerned or freak out. But I am. I am freaking out. Has anyone experienced this and had baby turn out to be just fine?