YOU SAID:

My dad, son, and my grandmother had a baby baby.

INTO JAPANESE

私の父、息子、そして私の祖母は赤ん坊をもうけました。

BACK INTO ENGLISH

My father, my son, and my grandmother made a baby.

INTO JAPANESE

私の父、私の息子、そして私の祖母は赤ちゃんを産んだ。

BACK INTO ENGLISH

My father, my son, and my grandmother gave birth to a baby.

INTO JAPANESE

私の父、私の息子、そして私の祖母は、赤ちゃんを産みました。

BACK INTO ENGLISH

My father, my son, and my grandmother gave birth to a baby.