I ran a 1/2 marathon 4 weeks ago and have only run once since then (have done Tae Bo several times). I have been a runner for the past 6 years, running 2 marathons and a half marathon and 10ks a couple times a year. I just found out I am pregnant. I am only 4 weeks! (Just had my first postive hpt) I want to start back running but am not sure if 4 weeks is too long of a break. I only plan on trying to run around 3-4 miles for as long as my body will allow. What do you all think?