C section scar purple? Currently pregnant with no2

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So I had my baby nearly 18 months ago and my scar looks like this still. I am currently 31 weeks pregnant with my second and it looks a bit darker purple than it did before I was pregnant but it’s never faded. Anyone else I know who has had a c section, their scar has faded to white. Is there something wrong with mine? Anyone else’s still like this so long after? Bio oil hasn’t helped. Sorry for the TMI pic.