i got my last flow of periods on 11th Sept 2011,in month of oct 2011 it is just brown spotting. After about 1&1/2 month, my doc has given me registrome tablet which i have taken on 23rd Nov till 27th Nov 2011, but till dat i have not got my periods. Please let me know what is the issue? We are planning for a baby, by when will i be able to conceive.