Nonconception

With this formulation, the probability of nonconception is simply the product of the day-specific failure probabilities multiplied across all days where there was intercourse.

Source: wiktionary

A long period of nonconception, usually the two or three years after marriage, leads to worries of a possible medical problem in the couple.

Source: wiktionary

In the case of nonconception, there is a loss of an enormous amount of possible future good but there is no victim of the loss, no existing individual whose good it would have been.

Source: wiktionary

For all these reasons, I assume that nonconception is better than a constantly neutral life.

Source: wiktionary