YOU SAID:

The first time I had a cat I was in the hospital

INTO JAPANESE

初めて猫を飼ったのは入院中だった

BACK INTO ENGLISH

I got my first cat when I was in the hospital

INTO JAPANESE

入院中に初めて猫を飼った

BACK INTO ENGLISH

I got my first cat while in the hospital

INTO JAPANESE

入院中に初めて猫を飼った

BACK INTO ENGLISH

I got my first cat while in the hospital