This document defines complementary and alternative therapies and discusses their use during pregnancy. It defines complementary therapy as treatments used along with standard medical treatments, while alternative therapy refers to treatments used instead of standard treatments. The document then lists several categories of complementary and alternative therapies and provides examples of safe therapies for issues like nausea, back pain, and labor pain during pregnancy. It also discusses techniques like reflexology, crystal therapy, mindfulness, massage, hypnotherapy, meditation, acupuncture, and herbal teas. Finally, it lists exercises like yoga, swimming and walking that are safe during pregnancy, as well as conditions where physical activity should be limited.