Singular White Bump- goes away and comes back

I get this singular bump that exists , then disappears but another always follows. It stays in the same general area- never in the same exact spot. I don't know what's been causing it. Same partner- pregnancy in 2020-2021, I noticed it in 2021- but no gyno ever mentioned it or commented. General std testing in 2020 - no issues/all negative. Doesn't ever bother me but every once in a while I will pee or have something tight on me and it will itch slightly but nothing intense or long lasting irritation wise. it's located on the pink area under the clit and above uretha.

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