So that's what I could find out:
She just finished taking birth control pills 4 or 5 month ago, but she was taking those pills for several years "every month". For the last year she used Minny (attached file).
Last period in October was for 11 days. Usually the duration of her period is 7 days at least, but she can't tell the exact duration.
Sometimes it's a period of full bleeding and sometimes it's just spotting for part of it.
Her periods are postponed sometimes.
It always changes, depends on a month.
Yes.
Rarely feels pain, mostly "the usual".
And about hormones: she doesn't remember the name of it, government doctor didn't explain much, just presctibed it. But she was taking some hormones 5 month ago (felt some pain and chose some medicine by herself - I told her to never do it again ofc).