Nickname on app

Megan • Happily married to Matt. We have a 6 year old daughter named Jordyn & we are expecting our 2nd daughter, Kennedy in June
A couple days ago, on my home screen, it allowed me to type in a "nickname for my baby" The way it was worded, I didn't realize it meant what we were naming the baby. It now shows up on the week log where it shows what she's the size of and how big she is. I want it to say her actual name... How do I edit this? I can't figure it out!!