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Can see a gemmule in trouble excessively for a long time ?

怀孕多长时间可以看见胚芽？

The gestation 63 day has a gemmule , the vitellus bag has no primitive heart tube pulse .

怀孕63天有胚芽、卵黄囊无原始心管搏动。

Check pregnancy is positive reaction as early as possible , do b-ultrasonography have no way to show the gemmule padding heart .

查早早孕是阳性反应，做b超没法现胚芽胎心。