Suggest Remedy For Burning Sensation In Vagina After Unprotected Intercourse

I has sex for the first time and later took the after pill ever since I ve had my period the day after don know if it s because of loosing my virginity or my period it s been over a week and still bleeding we had sex this Friday again and took morning after pill again we did not used condom first the we did two days late my Vivian feels like it burns when I pee then it stops it s just when I pee and a little after at night it s fine my under wear does not bother me that much as of now if this is my period I ve had its once Monday 16 nov till today nob 24 and still going I m scared of something else