Infected Belly Button Help!

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Ok I'll start by saying yes I'm pregnant, no it doesn't normally look like this it's just super stretched and yes it's got neosporin on it. Lol I've had this pierced since I was like 13 so many many years and it's never been infected even with my first child. I think this time it might be from lotion getting in it or something. What can I do to clear up the infection or should I just go to the doctor? It has crusties in it that I cleaned out and it's super swollen and sore so I put neosporin in and around it. Any help is appreciated!!