50 days pregnant. How big is the gestational sac?

At about 50 days of pregnancy, the size of the pregnancy sac is about 2.0 cm. Among different individuals, the speed of pregnancy sac development is uneven, which may be slightly larger or slightly smaller. At 50 days of pregnancy, in addition to observing the size of the pregnancy sac, it is necessary to see whether the shape of the pregnancy sac is normal, and to determine whether the pregnancy sac has the formation of fetal buds and whether it shows fluctuations in the heart tube. If the gestational sac is normal in size but abnormal in shape, or if the gestational sac does not show fetal buds or fluctuations in the fetal heart, then even if the gestational sac size is consistent with the gestational age, it is abnormal. If the gestational sac is slightly smaller, but the fetal bud development is obvious, and it shows regular fluctuations in the heart tube, it is normal.