Since you’re tired and coping with morning sickness, the first trimester might not feel like the easiest time for pregnancy exercise. But staying active might help you more than you think: Moderate exercise can pump out feel-good endorphins and lower levels of your stress hormones, says Lawton. That can translate to less nausea and more energy.
During your first trimester, it’s safe to perform pregnancy exercises while lying on your back. Lawton suggests doing a modified version of The Hundred, a signature Pilates move that’ll help you build the core strength to cope with labor pains and make childbirth easier. Laying on a yoga mat, extend your arms straight out by your sides and place your legs in a table top position (like you’re sitting in a chair) with feet in the air. Pump your arms up and down while inhaling for five breaths and exhaling for five breaths, 100 times total.