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 the further part of this article, we will pinpoint what kind of weight fluctuations you should be concerned about.
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Pregnancy gain depends on two main factors: your prepregnancy BMI and the type of pregnancy (singleton or twin).
This weight gain is your target for the 40th week. During your pregnancy, however, you can monitor the changes in your weight as well. The Institute of Medicine of the National Academies suggests a distribution of pregnancy weight gain by week; we built this calculator according to their guidelines so you can check whether your weight is in the recommended range.
During the first trimester, you will probably gain 3-4 pounds in total only - your baby is still tiny, and morning sickness may prevent you from gaining any weight at all. Most of your weight gain will occur during the second trimester. In the third, even though you will still keep gaining weight, the gain will slow down, especially during the ninth month.
First of all, don't stress too much - you don't have to weigh yourself every day. The day-to-day fluctuations, often caused by a bigger dinner the day before, can really drive you crazy! It's enough to weigh yourself once a week. Remember to always do it at the same time of the day, wearing the same amount of clothes, and using the same scale.
Don't fret if your weight differs from the recommended one just slightly. Your pregnancy will not follow the "ideal" weight gain distribution. As soon as you approach your target weight, you should be fine. Watch out for the following, though, as these might be some worrying signals:
If you are in any of the aforementioned situations, don't forget to consult you doctor.
Take a look at the BSA calculator to get a better understanding of your metabolism, too.