Then relax, you are extremely unlikely to get pregnant. Your medication does not interact and the birth control method is the most reliable method without actually getting sterilised.
If you are so concerned about falling pregnant then perhaps you need to discuss getting your tubes tied. this would mean you could never conceive at a later date but it might help your anxiety.
Having this level of worry about intercourse and pregnancy may cause you both stress at a time when you should be relaxed and enjoying the moment.
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