I Need Help Asap

So I Recently Lost My Virginity Last Week . After It Happened I Couldn’t Pee. Nothing Would Come Out . So I Went Home Drunk Some Water And Peed . When I Peed It Was Blood . No Biggie Right ? So The Next Day No Blood . The 3rd Day I Had Blood . So I Searched Google For Some Answers And It Said It Was Normal . But I’m Experiencing Some Other Things Now . I Don’t Know If I Have An STD , Sti , Yeast Infection , Or Uti . It Burns A Little And Itches . I Don’t Have A Foul Smell Or Discharge . I Don’t Have Any Sores Or Anything . I Just Need Help . I Want To Go Get Checked But I Can’t Bring Myself To Tell My Mom Or Sister . I’m Only 16 . I Had Unprotected Sex . I’m So Embarrassed And I Don’t Know What To Do . I Bought Some Vagisil Itching Wipes Today . It Burned When I Applied It . But It Kind Of Stopped The Itching A Little . Please Help Me . Tell Me What You Think It Is . I Need Your Opinions And Experiences . Anything Helps At This Point . When I Explain To Others That Are Sexually Active They Think That I’m Overreacting . I Feel Like It’s More To It . But I Do Remember That Before We Did It He Touched My Friends Dog And I Don’t Think He Washed His Hands . While We Were Making Out He Slid His Finger Inside Of Me . I Didn’t Even Think Abt That At The Time . I’m So Scared .