What can chicken pox in utero do?

I have been wondering this for ages, and when I was an undergrad I searched psychinfo and pubMED, but didn't find any article about it, so I'm guessing it isn't that common. After all, most people have chicken pox when they are younger, not when they are 34 and pregnant with their fourth child.

Regardless, when my brother was 1.5 years old, he got the chicken pox. My mother never had the chicken pox before, and contracted them shortly thereafter. She was also in the beginning of her second trimester with me. This left me immune to the disease, and a lot of other questions regarding whether it change any other part of my development, specifically in the frontal/prefrontal cortex. Maybe it is just me, but of my entire immediate family, I am the only one with significant learning disabilities, which is best described as ADHD, with a mix between dyslexia and CAPD, but neither.

I have accepted that this is me, and how my brain operates, it has just also made me wonder if that played any significant role. Thanks