The reason for the previous miscarriage might have been helpful. Reasons for a miscarriage might be of anatomical or physiological origin. If the anatomical cause is not removed, it is possible that another miscarriage might easily happen due to the same reason. The cause for a miscarriage is different in different periods of the pregnancy. So, data about what week you had the miscarriage might be useful for further diagnostic procedures.
If you think that your belly is bigger then it should be, then you might want to visit your gynecologist for an ultrasound. One of the most frequent reasons for increased belly size is polyhydramnios. Polyhydramnios is a condition when an excess of amniotic fluid is present in the amniotic sac. The amniotic fluid is expected to be more than 2000 ml in this condition.
Many reasons might cause polyhydramnios, including: maternal diabetes mellitus, gastrointestinal or neurological abnormalities in the fetus.
But first, polyhydramnios has to be confirmed by your gynecologist using an ultrasound scan.
Meanwhile, try not to worry too much because your previous miscarriage might have made you too sensitive to any changes of your body and what you interpret as an oversized belly might be actually quite normal size. It can not be determined without further measurements by your gynecologist.
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