On 'mini'pill' birth control, breastmilk drying up, if i stop pill and continue pump/nurse will it increase back to normal?

Possibly: The mini pill contains progestins only and is not supposed to decrease milk supply if started after 6 weeks or well established breast feeding, in contrast to combination estrogen and progestin which significant does affect milk supply. There are anecdotal reports that mini pill does affect milk supply and stopping may help, but unlikely if it has been more than a few days. Good luck.