Why are there men on this app?

Hey girls..(and guys I guess) I don’t wanna sound like I’m complaining or against men or anything and I understand that some men get periods (trans men) but I’ve been noticing a few accounts on here who are men ..like husbands and dads etc. I just thought this was an all girl app 😳 idk I just find it awkward talking about certain things that cis men are able to see