Hi there,
The answer to your question will depend on what your menstural pattern was before yasmin and how irregular your periods have become now.
Your periods on Yasmin would have been very regular because of the monthly withdrawal bleeding.
However, if you have since stopped the medications and find that your periods have become irregular, it would be good for you to go for further checks to ensure that this irregular periods is not due to some other underlying cause.
Regards,
Dr Michelle Chia