Hemorraghic Cyst and late tablets.

##unstimulated cycle I had hemorraghic  cyst so my follicular study was closed this cycle. they  asked me to take duphaston 10mg from day 13 night for 15days twice a day. but i dint get tablet so i took tablet THREE  days later from day 16 morning. now from day 20 i have light spotting (no pain at all) so contacted dr for clarification aboutt the same (mild spotting lasting for three days). today on day 22 they gave susten 300mg once a day (as per their calculation for 5 days that is till duphaston gets over) i forgot to tell them that i took duphaston  3days late but i have duphaston to take for 9 more days should i take extra susten for 4 more days till duphaston gets over or should  i stop it in 5 days as per dr's calculation. what should i do. i never had spotting while on duphaston this is new to me. should i take extra susten till my duphaston gets over or stop it? My spotting stopped after taking both tablets. my doubt is when should i stop susten 300mg?