This could be particularly important for those who are carrying some extra weight.
According to comments from Jacqui Clinton, health campaigns manager at Tommy's charity, women with a body mass index (BMI) of 30 or more are at an increased risk of experiencing problems such as miscarriage, premature birth and stillbirth.
Ms Clinton added that babies born to women with a high BMI are themselves more likely to experience obesity-related healthy problems, such as cardiovascular issues and diabetes.
However, she remarked that there is currently a lack of advice available to help women maintain a healthy weight during pregnancy.
"There is a need for antenatal care guidelines for weight management in pregnancy and support for health professionals to effectively provide this guidance," she explained.
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