Should I go to the ER tonight or wait.

My back has hurt all day since about 2. I just noticed a slight pain when I pee but it’s barley there. Hast hurt at all throughout the day. Rn my back pain is about a 5. I really don’t want to sit at the Er tonight or tomorrow if it’s not better. I’ve had a kidney infection and the pain mimics it. no fever as of yet. Just kinda tired. Is this normal? Should I get checked out tonight or just see if going to bed helps? I’m conflicted. My dad also went on this tangent because I told my mom and he says it’s from dirty sex.... yet I sleep with one person who’s clean and I pee after every time. I’m honestly scared to go to the Er because I don’t want to be admitted again on Christmas <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>.