I am 13 weeks pregnant with my first child. This morning I woke up with some wicked pain solely in my left leg. My leg under my calf is swollen but not my calf or ankle. It seriously feels like I pulled/tore a muscle but I haven't actually done anything to sustain an injury like that except for casual, but frequent walking.

It has gotten more painful as the day has gone by and I'm at the point that I'm nearly in tears when I put pressure on my left leg.

Is this normal? Is there anything I can do to alleviate this pain?