I Woke Up This Morning With Lower Back Pain. I

I woke up this morning with lower back pain. I tried to massage it, and it felt bruised (no bruise, and I haven't had any trauma to my back.) As the day went by, the pain got worse (especially when sittin) and the pain started to radiate into my right leg, causing my right leg to feel numb. The pain is horrible when lying down or sitting down. Does this sound like a pinched nerve?