YOU SAID:

I was lucky I wasn't swallowed by my mother

INTO JAPANESE

母に飲み込まれなかったのはラッキーだった

BACK INTO ENGLISH

I was lucky that my mother didn't swallow me

INTO JAPANESE

母が私を飲み込まなかったのは幸運でした

BACK INTO ENGLISH

I was lucky that my mother didn't swallow me