YOU SAID:

I am going to the loo for a poo because I just need to don't you think

INTO JAPANESE

私はうんちをするためにトイレに行きます。

BACK INTO ENGLISH

I go to the bathroom to poop.

INTO JAPANESE

おしっこをしにトイレに行きます。

BACK INTO ENGLISH

I go to the bathroom to pee.

INTO JAPANESE

おしっこをしにトイレに行きます。

BACK INTO ENGLISH

I go to the bathroom to pee.