YOU SAID:

i had to go to the bathroom but now i dont

INTO JAPANESE

トイレに行かなければならなかったが、今は行かない

BACK INTO ENGLISH

I had to go to the bathroom, but I won't go now.

INTO JAPANESE

トイレに行きたかったけど、もう行きません。

BACK INTO ENGLISH

I wanted to go to the bathroom, but I can't go now.

INTO JAPANESE

トイレに行きたかったのですが、もう行けません。

BACK INTO ENGLISH

I wanted to go to the bathroom, but I can't go now.