i'm a lesbian and my Partner is female. Wwe both use menstrual cups and have changed them in front of each other, as well as pantyliners and tampons before Wwe both got cups. i changed in front of previous female partners also. Some of them were comfortable doing so in front of me and some weren't. i've also changed tampons, cups, pads, etc. in front of my sister and vice versa. i'm surprised sister, mother, other female relative isn't on your list of options but since my sis is really my most intimate friend of the same sex anyway, i chose that option. When my mother was alive, she and my sister and i had all changed in front of each other with no concern. Menstruation is normal and not anything I'm embarrassed by. i would obviously do so in front of a medical professional if a need ever arose.

we (my husband and I) close the door when we are going to the bathroom so it is no different to me to keep it closed when changing my pad. It is just not something I feel he or anyone else needs to see