Anyone have a DVT while pregnant? Please comment.

I had what felt like a charley horse wake me up Sunday night/Monday morning in my left leg. I had to hop out of bed and stand up in order for it to go away and boy did it kill! All week my left calf has been very sore, as if I pulled a muscle. Today it actually feels a little better but when I brought it up to my OB, she mentioned watching for swelling, redness or varicose  veins. I happen to have some varicose veins on my left calf below the back of my knee. I'm also having groin/sciatica pain on my right side now.