Pregnancy Exercise Routine: Exercises That Work : Cardio Exercise During Pregnancy. Keeping fit during pregnancy has many advantages for expectant mothers, and cardio is an important part of any pregnancy exercise routine. Develop a pregnancy-safe exercise routine with thehelp of a certified personal fitness trainer in this free video. Expert: Tanya Batts Contact: www.goldsgym.com Bio: Tanya Batts has been a certified personal fitness trainer for more than 11 years. Filmmaker: Reel Media LLC Series Description: An efficient workout routine produces better, faster results. Create a more effective fitness routine with the help of this free video series by a certified personal fitness trainer.