Hi, Thanks for choosing HCM The safety of this medicine clexane during pregnancy has not been established but animal studies have not demonstrated fetal risk so far. It is not recommended for use in pregnancy unless considered essential by your doctor. Seek medical advice from your doctor, if he thinks that benefits outweighs risks ,then you can continue Are you taking regular blood tests to monitor the platelet count (a kind of blood cells) in your blood. You may also need tomonitor the level of potassium in your blood while you are having this medicine, if you are taking treatment for a longer duration hope i answered your query feel free to contact me for further queries thank you