Pilates and Yoga can be safe and beneficial for pregnant women, but it's important to practice forms of each that are specifically modified for pregnancy. Prenatal Yoga focuses on poses that are safe for pregnant women and can help with the discomforts of pregnancy and prepare the body for childbirth. Similarly, prenatal Pilates strengthens the pelvic floor and abdominal muscles, supporting the body as it changes, but always under the guidance of a certified instructor.