belly buttons

Meredith • Mother to my rainbow baby girl 10/21/16 and 1 on the way due 1/4/19 🌈🌈
Hi everyone, my daughter is 6 days old .. most of her cord came off at 3 days old but today it started looking like this. We haven't touched it.. picture one is on day 3 and second pic is today. Is this normal? It's not red around it or hot or smelly or anything. Thanks! 
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