The impact of reproductive status on olfactory sensitivity indicates the specificity of odor.

Abstract
Previous research on the reproductive cycle and olfactory sensitivity in women did not directly compare threshold levels for social and environmental odors. Here, using a staircase method, we used successive dilutions to establish olfactory thresholds for Androstadienone – a social odor produced by men, and rose – an environmental odor providing trace elements necessary for successful implantation, prenatal development, and maternal health.
Fertile women were more sensitive to social odors (Androstadienone) than environmental odors, while women using contraceptive pills, inducing a hormonal state of infertility similar to early pregnancy, were more sensitive to environmental odors (rose).
This preliminary study lays the groundwork for further research on the interactions between hormonal states and sensitivity to specific reproductive-related odors.