Thanks for the query.
Primulot tablets used to induce withdrawal bleeding.
Once the spotting started you might have stopped the tablets. Then the bleeding will continue. But as you continued the tablets now they will act to stop the bleeding.
So better now you stop the tablets, let the bleeding continue. After completion of the tablets observe the next cycle, if menstruation
occurs on regular date no need of further treatment.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429