I am diagnosed with PCOD and have stared beritol and Aldactone tablets on the 27th of October. It's been almost a month that I am on medication and this time around my periods which were normal before came a little late and is very light flow with dark blood. Is this a concern? I have not been sexually active for a couple of months and pregnancy is not an option here. Please suggest if this normal or shall I consult mu doctor immediately or wait for the 3 month medication treatment to get over and then reconnect with my doctor?