Thanks for our query.
Scanty periods could be because of hypothyroidism
For a TSH
of 8.57, she should be starting replacement thyroxine
Also, emergency pills are not supposed to be used so casually or frequentl.
It would not affect future pregnancy
, however these pills would alter your menstrual cycles.
She should follow nutritious diet, with lots of green leafy vegetables and fresh fruits and plenty of protein in diet.