天气预报 > 其他 > 胚胎着床后多少天有胎心胎芽
胚胎着床后多少天有胎心胎芽
更新时间: 2020-11-04 00:00:00  

一般来说精卵结合着床后3-4周会出现胎芽,4-5周会有胎心出现。精卵结合在1周左右会移植到宫腔,在宫腔内着床发育,要想判断胚胎发育好不好,早期可以通过血hcg和孕酮数值间接反映。

关键词: 胚胎 多少

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