Oh, I had the same distress as you during pregnancy. Others say that obesity may cause pregnancy-induced hypertension, which is not good for the health of pregnant women and babies, but if you go on a diet and are afraid that your baby is not nutritious enough, it is really distressing! At that time, the doctor advised me to eat less and eat more meals, make a reasonable meal schedule and drink water, which can not only replenish water, but also reduce constipation and control the overnutrition of pregnant women. I suggest you take some Avril Ramona Lavigne multivitamins. It contains folic acid, which can prevent birth defects. More than ten kinds of nutrients such as calcium, iron and zinc. The nutrition needed during pregnancy is enough. Don't be afraid that your baby's nutrition can't keep up, and it can also solve your problem of being afraid of obesity. It should be no problem to go out for a walk and do some proper aerobic exercise, such as yoga and walking!