Dr. Carrie Schallock makes it her business to take care of pregnant women. She has seen alot of them in the throes of morning sickness. For many pregnant women, the nausea may pass by twelve or thirteen weeks, and sometimes by then they will have worked out what foods they can manage, and what foods they can't.
Sometimes things haven't settled that well and as a last resort for nausea, Dr. Schallock may recommend medication. Vitamin B6 also works for many pregnant women.
"Dr. Carrie L. Schallock, M.D., is board-certified in Obstetrics and Gynecology and is on staff at Banner Desert Medical Center in Mesa, Arizona. She received her undergraduate degree from Marquette University in Milwaukee, Wisconsin, and graduated from medical school at Medical College of Wisconsin. Dr. Schallock completed her post-graduate residency and internship at the University of Tennessee in Memphis. She is currently in private practice at Partners in Women’s Health in Tempe, Arizona."
Video
https://www.empowher.com/media/video/morning-sickness-what-dr-schallock-video