Women are attracted to more masculine faces during fertile stages of their menstrual cycle

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During the fertile phase of their ovulatory cycle women are attracted to steroidal masculine faces but but only in a short-term, not a long-term, mating context. Women want to exchange genetic information with steroidal men so their feraal offspring inherit his genes but later on women seek long term relationships with less aggressive males who were phased out of the genetic code because they didn't make her wet enough to want to preserve his DNA.

Women's preferences for male behavioral displays change across the menstrual cycle - PubMed

Women prefer both the scent of symmetrical men and masculine male faces more during the fertile (late follicular and ovulatory) phases of their menstrual cycles than during their infertile (e.g., luteal) phases. Men's behavioral displays in social settings may convey signals that affect women's...

pubmed.ncbi.nlm.nih.gov