In your case it is recommended to avoid the tablet in canesten duo and use only the intravaginal cream which contains Clotrimazole. This is effective for many patients, and is a safe choice during pregnancy. A 7 day treatment course if preferred. However please confirm first from your doctor whether this is indeed vaginal thrush. This cream can be used at any point during pregnancy and does not pose a risk of birth defects or other pregnancy complications
According to some studies it does have an effect on sperm causing a decrease in sperm motility. However these studies are not conclusive and more studies are required to tell with authority whether this will have an effect on sperm or not.
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