Answer:
estrogen; ovulation
Step-by-step explanation:
According to one study, the tips earned by lap dancers across the menstrual cycle varied in a pattern that closely resembled the pattern of estrogen secretion, with the most money earned around the time of ovulation. In terms of olfactory cues of fertility, a number of studies have found that men are more attracted to the scents of women in their likely fertile period than outside of this time.