I found out I was pregnant not long after a disaster of a half marathon. The whole race I knew something was wrong with my body. The past few weeks I just felt weak and couldn’t hit paces. During the race I crashed pretty hard after mile 6. I felt lightheaded and nauseous. My hands felt tingly. I was just off. I ran a half-way respectable time, chalked it up to an expensive training run , and moved on. Then, two pink lines and a diagnosis for anemia. It all made sense. And that was my first trimester half.