Get all the pregnancy tests done. The more doctors know about the pregnant woman, the more well-equipped they will be to help her. According to the pregnancy tests, her diet can be modified. She can be advised either to rest or to exercise. She can be admitted to the hospital and kept under supervision. In case she has some infection, that infection can be curbed so that it is not transmitted to the baby. All the medical concerns can be addressed provided an appropriate pregnancy test is done.