YOU SAID:

when i got home had a pancake for my sister and brother, crepes

INTO JAPANESE

家に帰ったら姉と弟のクレープにパンケーキがあった

BACK INTO ENGLISH

When I got home, my sister and brother crepes had pancakes

INTO JAPANESE

家に帰ると、姉と弟のクレープにパンケーキがあった

BACK INTO ENGLISH

When I got home, my sister and brother crepes had pancakes