Yes, when taking Lessina you will experience a monthly withdrawal bleed that simulates a natural period. This will occur at some point during the 7 days you are taking the inert pills, although you will not necessarily bleed for the full 7 days. Make sure to continue taking the inert pills even if you have stopped bleeding. In the first 3 months of starting Lessina, it is common to experience some breakthrough bleeding or spotting; in most cases, this is completely normal and often goes away with time. However, if you feel you are bleeding particularly often or heavily, or if your breakthrough bleeding continues past 3 months, speak to your doctor for advice.