Role of pheromone in increasing fertility of women & regularization of menstrual cycle 0

As reported by a behavior endocrinologist Dr. Winifred Cutler and her team that the human pheromones  are present in the underarms, with the removal of underarm sweat, there was still presence of odorless pheromones.
Moreover it has been observed in the studies conducted by Dr. Winifred Cutler that women who were having regular sex with men, their menstrual cycles are more regularized in contrast to women who had only occasional sex activity.
The regular sex activity was responsible in delaying the decline of estrogen and was responsible in increasing the fertility of women. This led the research team to form the opinion that the women were receiving from their men the pheromone which was responsible for these changes observed.
Pheromone is responsible for regularization of the menstrual cycles in women. There is also a notable observation regarding when women are living together with other women they adjust their menstrual cycle timing in relation with other women, with whom they are living with.