What could It be?

Lacey • Mommy to Sophia Kathryn 💕

So I have noticed that I haven't gotten a line down my belly yet but instead I have a weird ring shape around my belly button. It's not brown it's almost light purple in color and resembles a vein almost. I was wondering have any of you moms gotten this before or have it now? Is it the start of stretch marks or maybe a vein? Help me out, I can't get a great picture of it but here is what I do have. Btw I am 26w2d