U.S. Air Force Senior Airman Alexandra Singer performs a TRX row exercise at Joint Base Langley-Eustis, Virginia, Jan. 13, 2020. Under the new Conditioning/Reconditioning (Fitness) Program for Airmen During and After Pregnancy guidance, fitness centers must be staffed with certified pregnancy trainers and host classes at least three times a week. (U.S. Air Force photo by Airman 1st Class Zoie Cox)