Are you pregnant? She has been pregnant for 13 weeks according to ult…

Are you pregnant? She has been pregnant for 13 weeks according to ultrasound, and her pregnancy was confirmed in January. She is currently experiencing morning sickness, but she's not sure if it's due to the pregnancy or something else. Her doctor says that she should be careful about what she eats. She also mentioned that she had some previous pregnancies, which were all terminated. What happened to her previous pregnancies? Is there anything we can do to help her?