During my last pregnancy, I stopped running around 10 weeks. I stopped because I was getting short of breath and because I was paranoid. Even though everyone said it was ok, I was not going to do anything to even potentially damage the pregnancy. So I walked and did the elliptical each day. This time around, I am far less cautious.
I am still running. Not nearly as much as I would like to be (30 miles a week), but definitely still getting three good runs in a week. I am running about 8-10 miles a week. I temper my running workouts with spinning, which is equally taxing and stairclimbing on the stepmill. I have also continued lifting.
Since it is the winter, many of my runs are inside my gym on the treadmill, but I am still running my 3-mile loop outside when it is warm enough. But oh man, is it getting hard. Up until November, my three-mile loop was my "easy run." No longer. Yesterday, I thought my bladder would explode halfway through my run and I had to duck into a bar for a pee break. Sexy.
As of now, the plan is to keep the running going throughout the pregnancy. I am convinced it will make the transition back into running after the pregnancy much easier.
But ever since my belly started the pop, the looks I have been getting are pretty amusing. Still, I will not abandon my routine. It is getting harder and more challenging, but I am in it for the long haul. We'll see how long I make it.