It was 1972, when I was about twelve, and in my first year at secondary school.
My mother hadn't told me anything about periods, but luckily my primary school had given all us girls a full afternoon lesson in our last term which covered that, as well as showing us a film of a woman actually giving birth to a baby! There was no way I would have told my mum about it as I knew she would have been very embarrassed about discussing it.
We also covered basic sex education in science lessons in the first or second term in secondary school, so I knew roughly what to expect.
I was at school the day my periods started. I packed my pants with a wad of rolled-up toilet paper. I dreaded having to tell my mum, but I had no option since I had no proper protection to use and no money to buy any myself. It turned out that Mum was prepared, as she took me to her bedroom and handed me a pack of stick-on pads. But apart from that and asking me once or twice how I felt, that was that. At the same time, she started giving me a monthly allowance and made it clear that I must buy my own sanitary products out of that. That suited me, as I didn't want to have to keep telling her when I needed them, or possibly even justify how many I was using!
My periods were horrendous - long, heavy very frequent and painful, but I struggled on in silence, as I had no more desire to tell my mother than she would have had discuss it.
Whenever I had my period at school ,I was terrified of bleeding through my protection and it being visible to everyone, even though I used both tampons and towels at the same time, and even kept using thick wads of toilet paper too as an extra precaution. I would panic every time I felt a heavy gush.
In fact, periods ruined a huge chunk of my teenage years as there was so much I couldn't or didn't dare to do because of them.
In my mid-forties, the GP who I had gone to see for some completely unrelated reason spotted that I was extremely anaemic . That led to my being fitted with the mirena coil, and I have never had another period since. Bliss!!!