Above all, it is important to make sure that the therapist is certified for this type of treatment. Thereafter, preferably having completed her first trimester and having a pregnancy without major complications. During pregnancy swelling and pain in the lower back and pelvis may set in, unusual stress, harder breathing, lighter sleep. All these discomforts can be improved with massage. The relaxation of the skin as well as the muscles helping in childbirth are other benefits of massage during pregnancy.