@Anna1 just a little English lesson for you, I know English is your 2nd language but “his” is masculine 100% of the time. “Her” is the correct feminine form of the pronoun. When you are talking about something like periods which is feminine in 99.5% of cases ;), you use “her” not “his”. You probably see “his” more often than “her” on the internet because there are more men, but yeah “his” is only for men, and never for women . But everyone knew what you meant at the end of the day, I could just see why you got confused between the pronouns and wanted to help you out. If you were referring to BOTH men AND women, it would be “their”…only women “her” and only men is “his”. Hope that helps a little @Anna1!!