Can ocd drugs lead to mis-carriage?

Depends: The answer really depends on your personal medical history, what drugs you're on, your partners medical history and environmental factors. A miscarriage within the first trimester is an indication that something is wrong with the fetus. It's evolutions way or Gods way whichever you believe of protecting the fetus from possibly living a long life filled with complications.

OCD meds: Your question is quite broad. Many different medications in different categories are used to treat OCD. In general, medications most doctors use to treat OCD are not known to cause miscarriage. Some of these meds are best stopped during pregnancy. If you have a certain medication in mind, please re-submit with that example. Best wishes.