It turns out that the precursor genitals transform into either female or male during the first trimester of pregnancy.

结果表明，在怀孕的头三个月中，新生的生殖器官会转变为女性或男性。

They were vomiting, they were throwing up, they were nauseous, something which is relatively common especially in the first trimester of pregnancy.

她们都有呕吐恶心的症状，这其实挺常见的，尤其是在怀孕初期的三个月。

Taken together at any  point in the first trimester of pregnancy, they can induce an abortion.

在怀孕前三个月的任何时候，将它们放在一起都可能导致流产。

In the first trimester of pregnancy, she had visited the antenatal clinic of the hospital in Mumbai where I was doing residency.

在怀孕的前三个月，她去了我住院的孟买医院的产前门诊。