So my mother and father are divorced and my sisters and I see my dad every other weekend. My birthday is coming up September 5th and my grandma who never accepted us as her grandchild till New Years after taking a Dna test, wants to take us swimming on the day I'm going to be on period. Although it will be my last day on my period i don't know what to do and my grandma would just talk about me if I do go. What should I do? If I swim what should I wear? Please help😭😭