15 days pregnant belly usually does not get bigger.
15 days pregnant, the diameter of the gestational sac is probably less than 0.2cm, is very small, the stomach generally will not have obvious changes, generally until after 18-20 weeks of pregnancy, from the body type can obviously see the abdomen bulge pregnancy.
Simply pregnant 15 days, this period from the appearance of pregnancy is generally not visible. The uterus is still in the pelvis at this time. If you want to know whether you are pregnant in early pregnancy, you can determine it by taking blood, urine test and early pregnancy test paper, and you can also determine the development of the embryo by ultrasound in early pregnancy.
However, some pregnant women realize that their stomachs are getting bigger after 15 days of pregnancy, which may be due to obesity caused by eating too much nutrients and doing less exercise.
In addition, if you suffer from gestational trophoblastic diseases such as hyperemesis gravidarum, you may also experience abnormal enlargement of the uterus. If you experience an abnormally large belly after pregnancy, you should go to the hospital for an ultrasound examination in a timely manner in order to rule out the disease.