If you have the D antigen, then you're Rh-positive.

如果您有 D 抗原， 那么您就是 Rh 阳性。

And the antigen that causes trouble in pregnancy is the D antigen, also known as the Rh factor.

而在妊娠中引起麻烦的抗原是D抗原，也称为Rh因子。