Silver lining to having bad cramping.

So I've been having really bad cramping for two weeks. In fact it got so bad I was doubled over, broke out in cold sweats and thought I was going to throw up. Called the doctor and of course they wanted to see me. They did an abdominal ultrasound but it was pretty hard to see much. We did see the sac and a very faint heartbeat, which was awesome. They also drew blood to check hcg levels. Doctor said she wanted to see at least 2,000 and wanted another draw in 48 hours to make sure they doubled. She just called with results and my level is at 79,000. She said no reason to redraw on Saturday but wants me to come back for a transvaginal ultrasound to make sure there's not a cyst or a twin that could be ectopic. The ectopic twin isn't likely but just want to be sure. It was great reassurance that my numbers were so high and we saw Baby O.