Halakhah for Deuteronomy 7:14

You should accustom yourself to move your bowels in the evening and in the morning because this habit is conducive to vitality and cleanliness. If you are unable to do so you should walk four amohs and sit and stand and sit [repeating this procedure] until you move your bowels; or you should divert your thoughts from other matters. If you delay going to the lavatory you transgress the prohibition of bal teshaketzu.¹“Do not make yourself detestable.” See Leviticus 11:43. However if you delay until you find a suitable or decent lavatory, it is not considered a transgression. And if you delay urinating when you feel the urge you also transgress the prohibition against bringing about sterility.²See Deuteronomy 7:14.