YOU SAID:

my dog gave birth to my mother last year

INTO JAPANESE

私の犬は私の母に昨年出産しました。

BACK INTO ENGLISH

My dog gave birth to my mother last year.

INTO JAPANESE

私の犬は、昨年私の母が誕生しました。

BACK INTO ENGLISH

My dog was born my mother last year.

INTO JAPANESE

私の犬は、昨年に私の母に生まれた。

BACK INTO ENGLISH

My dog was born my mother last year.