Is it wrong to be uncomfortable

Is it wrong when my sister or family member get her period and talks about it I get really uncomfortable because there really blunt and it get really nervous like is it wrong to think it’s more of a private thing like my mom was in pain because of cramps and she said I’m Bleeding out my vagina and I’m just like

Like is it wrong to be uncomfortable to talk about periods like I’m not embarrassed just I get uncomfortable?