You always need to monitor your exercise because too much exercise can impair ovulation in females. You can monitor your exercise through apps like RunKeeper, Strava, Yoga Studio, Sworkit, J&J Official 7 Minute Workout, Couch to 5K, JEFIT, and Zombies, Run! Especially when pregnant it is critical to only exercise moderately and does low-energy activities like yoga, stretching, or low-endurance strength building.