I've been using Oratane for about 3 weeks. Found out I'm pregnant. Really worried

I definitely know not to conceive while using Oratane. Been on and off for about 3 years. Been on it now for about 3 weeks. Today we found out we are expecting. Don't know if we should be happy or heartbroken. We definitely wanted another child but not while i was still on oratane. Is there any mommies out there who had a baby whilst on oratane. What do you suggest? Doctor? I'm so emotional

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