Задержка месячных, кровь при мочеиспускании и жжение: что это может быть? Жду приема врача!

My period is about a week late. yesterday every time I had a wee a little blood would come out and had a really bad stinging sensation.. any idea what this could be? I’ve got a doctors appointment on Tuesday (that’s the earliest they could schedule) I’m really freaking out 😕