During the first Month of pregnancy, your baby grows at a rapid pace. But he is only about 1/5 inch long 4 weeks after conception, without being big enough to gain weight on his own. Most women gain very little weight in relation to the pregnancy itself during the first month. But mistakenly thinking that you have to "eat for two" can definitely add pounds in the first weeks of your pregnancy.
Typical weight gain in early pregnancy
The average woman earns less than 5 pounds in the first 3 months of pregnancy, and very little occurs within the first 4 weeks. Fluid retention, which occurs because of sodium retention in relation to increased progesterone levels, and increased breast size can account for a few pounds of early weight gain.
Overeating in early pregnancy
Although you will want to eat a healthy diet, you do not need extra calories in the first month of pregnancy for your baby's growth and development. However, many women increase their food intake, thinking that it is for the benefit of the baby. This can cause a significant weight gain, even in the first month of pregnancy. If you start eating an additional 450 calories per day - the amount you'll need in the third quarter - you can gain about 1 pound per week, or 3, 6 pounds in the first month, from excess caloric intake.