Is this discharge a sign of something?

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Hi. I just had sex with my bf. We’re both clear on all STIs and STDs. I felt a little sore because he’s... well endowed, but no pain peeing and no burning sensation.

However my discharge when I wiped was super thick and a weird brown pink. Any experience with this? I’m sorry for the TMI. Please share if you have answers. I am very anxious.