Several review articles on the topic note that an oft-overlooked benefit of exercise during pregnancy is improved mental health. "At first I was like 'okay, I guess I won't be snatching 240 pounds any time soon,' but that's a big part of your identity," explains Quiana Welch, a Crossfitter and Olympic weightlifter who holds the American record for the snatch. "If you were top in your sport or close, and suddenly you're pregnant and you're like, 'I can't do any of this anymore,' that's hard." Welch, who is due in June, has been an athlete her whole life. So even though her first trimester was tough—she was tired all the time and barely sleeping—she stuck with exercising. Now she squeezes in some lifting whenever she feels she has the energy (which is admittedly easier than it is for most expectant parents, since she's a coach at Black Iron Gym in Sparks, Nevada), and though she doesn't push herself the same way she usually would, those workouts are essential to her mental well-being.