Is this an STD? sorry...(photos) *female* professional advice pls

Sexual health
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so ive only ever had one sexual partner and yeah we had no condom sex, i was on the pill fyi, and i was also on the last day of my period ie; little to no blood. he has been in relationships before me and he was my first time. but a day after we had sex(this wasnt the first time we did, we've done it many times.) i noticed a really pungent smell its just not quite right , and i had a self check and i noticed these tiny bumps , i am unsure if i had had them already. (unlikely as i'm a newbie right??) im scared as to what this is like its mildy uncomfortable . (pic is of the urethra area between the lips.) is it a UTI?? HPV? or nothing at all could it just be the texture of the area?
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also the white areas are light reflections

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hey I’m currently having the same issue. i have one sexual partner we only had sex once and we didn’t use a condom .ofc he had other relationships before me. A few days after our first encounter i felt really irritated ,itchy & I had a thick white discharge with little to no scent, probably a yeast infection. I was also on antibiotics the week before i had sex. This is how it looked when i noticed it

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i got my period like 3 days after and the irritation and itching went away and this is how it look on the last day of my period
my period has ended six days ago and i started to feel a slight irritation again and this is what it looks like now

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they look like vestibula papillomatosis of u have a smell wat does it smell like its common to get bacterial vaganosis after sex it smells fishy