Belly button problems ?

H • •🌈💙12/18, 💙11/19, 🌈💗11/21, 💙5/23•💍03/13•

I posted about being super itchy, well I went and got labs done today and I’m waiting for results. After I posted I noticed the inside of my belly button was super red (haven’t been itching inside, just out.) I looked just now and I have what seems to be a puss filled blister too? I’ve scratched the outside so bad it started bleeding. I’ve never had this problem. This is my 4th to make it this far and 7th pregnancy total.