If you have symptoms like these, you need to see a doctor right away, especially if they are sudden and severe. In most cases, pulmonary embolism is caused by a blood clot in the leg that breaks loose and travels to the lungs. A blood clot in a vein close to the skin is not likely to cause problems. But having blood clots in deep veins (deep vein thrombosis) can lead to pulmonary embolism.
â A daily increase of 340 calories is recommended during the second trimester of pregnancy, and an increase of 452 calories is recommended during the third trimester of pregnancy. â The nutritional requirements of women who are pregnant or lactating involves more than increased caloric intake.
During the first 3 months of your pregnancy, you do not need to change the number of calories you are eating. Normal-weight women need an extra 300 calories each day during the last 6 months of pregnancy. This totals about 1,900 to 2,500 calories a day. If you were underweight, overweight, or obese before you became pregnant, or if you are pregnant with more than one baby, you may need a different number of calories. Talk to your health care provider about how much weight you should gain and how many calories you need.