YOU SAID:

I'm Mary I'm so pregnant

INTO JAPANESE

私は、妊娠しているメアリー

BACK INTO ENGLISH

I am pregnant with Mary

INTO JAPANESE

私はメアリーと妊娠

BACK INTO ENGLISH

I was pregnant with Mary

INTO JAPANESE

私はマリアを妊娠していた

BACK INTO ENGLISH

I was pregnant with Mary