This pregnancy weight gain calculator is a handy tool for estimating how much weight you should gain during pregnancy. You can use it to determine the pregnancy weight gain week by week. Remember that these values are only approximate, though – don’t worry if your weight gain is a bit faster or slower. In this article, you will learn about different changes that happen to a pregnant woman’s body and why it is so important to follow your weight gain during pregnancy. We will also tell you what is a normal weight gain in pregnancy and point out what kind of weight fluctuations you should be concerned about and what can they mean.