New medical guidelines have been announced encouraging doctors to discuss weight gain, diet and physical activity with pregnant patients.
The guidelines were announced by Health Minister Greg Hunt on Friday and are designed to support midwives, obstetricians and GP.
"The guidelines recognise that body mass index prior to pregnancy, and weight gain during pregnancy, are among important determinants of health for both mothers and babies," Mr Hunt said in a statement.
"Health professionals are recommended to discuss weight gain, diet and physical activity with all pregnant women.”
"They also say all women should be offered the opportunity to be weighed at every antenatal visit, and also encourage self-monitoring of weight."
Obesity is linked to several pregnancy complications such as gestational diabetes, preeclampsia (a high blood pressure disorder) and linked to a higher chance of emergency caesarian section.