As sperm can stay viable in the woman for several days, LH tests are not recommended for contraceptive practices, as the LH surge typically occurs after the beginning of the fertile window.
Como o esperma pode permanecer viable na muller durante varios días, as probas de LH non se recomendan nas prácticas anticonceptivas, xa que a ondada de LH ocorre tipicamente despois do comezo do período fértil.