Using a combined contraceptive pill like Yasmin slightly increases your risk of getting a blood clot. However, the risk is still very low overall and you are more likely to develop a blood clot during pregnancy. If a blood clot develops, it can cause: deep vein thrombosis (DVT, a blood clot in your leg) pulmonary embolism (a blood clot in your lung) stroke heart attack Your risk of getting a blood clot in a vein is highest in the 1st year of taking a combined contraceptive pill for the first time. When you stop taking Yasmin, your risk of a blood clot returns to normal within a few weeks.