It sounds more like a bug to me. I've had pre-term labor and never had d* with it. I didn't have d* with labor...and I am very prone to d*.

I had noro back around Christmas and I had bad stomach cramps and n*. Also d*. Sorry if this is tmi...but the way I can tell if it is a bug or not is that when it is a bug it is complete water. I didn't v*.

I am glad your contractions weren't productive. I had pre-term contractions for a couple of months with my last 2 pregnancies and the had to induce with 1 and c-section (my choice b/c he was a big baby and I was starting to develop pre-eclampsia) with the other. So my guess is that you'll go to term. Congrats on the pregnancy!