Losing my virginity (16) TMI

So, my boyfriend and I tried to have sex like three times and all were unsuccessful because he couldn’t penetrate since it hurt way too much. But a few days ago we finally did it (no condom but he didn’t come inside) and it hurt less then I thought it would, anyways barely any blood came out and I felt fine

but like day after, peeing started feeling weird, like when I pee it feels mostly fine but when I’m near finish I get a weird feeling in my vag that feels kinda like pressure? also I’ve been wanting to pee much more regularly even tho I don’t drink as much water as I should.

So any explanations?