A cramp woke me up and now I'm panicking 😰

So it's the middle of the night and I can't sleep. I was just asleep on my back and a cramp in my lower right side woke me up - this happened two days ago in the same place. I got up and peed, no blood or anything and it's not a continuous cramp. Is it possible this is round ligament pain? I'm 21w and a first time mom and really freaking out. The first time it felt almost like I stretched too hard (less intense than a Charlie horse but along the same idea of cramping) I'm just really scared 😞