YOU SAID:

Going to your moms house

INTO JAPANESE

あなたのお母さんの家に行く

BACK INTO ENGLISH

I'm going to your mother's house.

INTO JAPANESE

私はあなたのお母さんの家に行くつもりです。

BACK INTO ENGLISH

I will go to your mother's house.

INTO JAPANESE

私はあなたのお母さんの家に行きます。

BACK INTO ENGLISH

I will go to your mother's house.