When our children were young we lived in the sticks on a wonky private water supply (shared with neighbour) which fairly often went wrong, and stayed broke until we fixed it because no plumber would go near it. (Neighbours immediately moved out to live in town with their mother and their sole contribution was phoning to see if we'd fixed it yet.). The longest outage was 10 days. No probs to me.
I can easily bath me (or a baby, child or muddy dog) on the floor in a plastic washing up bowl of warm water.
When the taps ran out, water came from a tank fed from the roof and when the tank ran out, in buckets fetched by my kids from the river across the road. Happy to drink it (boiled), cook with it, warm it for personal hygeine as above, perfect for flushing lavs etc (to our septic tank).
Neighbour once came by from her exile to ask what was taking so long (!) and found me in the garden, squatting by the tin bath in which I was happily hand laundering pants in cold water. (Her face was a picture; "Butternandjam it's like something out of the third world".
We were of course, all wearing our pants for two days (turn them inside out for day 2). A concession for modern times.
I had already explained to the kids that in my postwar childhood, in our first home which had mains water, hot and cold taps, and a washing machine, we only got one set of vest socks pants on Monday and wore the same ones all week; and we got one bath a week on Sunday night (in shared water) . Mother had a woman who came on Mondays to help her do the laundry. Mother also had one bath a week (last in the shared bath) and kept herself spotlessly clean with a daily all-over wash in hand basin. She impressed on me that this is what ladies did; as taught by her own Mother in a house with NO PLUMBING WHATEVER.
When my Dad died we left the house with hot and cold taps, bath, basin, flush lav and went to live in Mum's NPW childhood home. My job was fetching the water every day; in buckets from the iron hand pump in the garden (shared with next door). This was the sole source of water for drinking cooking, cleaning, washing and laundry. We didnt need any for flushing because the only lav was a bucket under a wooden bench seat in an outhouse.
By now I had periods and just like my grandmother, mother, aunts every day I took some warm water from the electric kettle up to our shared bedroom, put it in a china bowl on the wash stand, washed all over, and threw the water out of the window. Mother told me how lucky I was that now (1959) we could buy disposable sanitary pads ( still an under-the- counter request at the chemist). They had to be burned in the living room fire but not when Granmdpa was around. In her teens, she and her sisters had all used rags, and at the end of the daily lady- wash they washed the used bloody rag in the basin before throwing the water out the window. Mum and her three sisters shared the washed rags.
Try that, you "transwomen" with imaginary periods.