If wife become pregnant From leukimea patient and...

Dear Customer
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Does those drugs may effect on pregnancy if the patient was the male partner ?
its unlikely to have a role in any medical issues related to pregnancy such as congenital malformations or abortion , so you dont have to worry 
What are the possible side effect of those medication to the male ferility ?
usually chemotherapy effects the quality of sperm , which mean you may find it hard to concieve your female partner , but if the pregnancy happened , then its unrelated 
General advices :
1. just as Precaution action , you may need to keep a distance between and the partner to avoid have any related chemotherapy possible effect on her especially during your treatment period 
2. stick to visiting an OBGYN doctor during the pregnancy periods 
3. advices to the female pregnant partner : pay attention to your health , have plenty of rest , avoid stress and heavy activitiy , have a healthy diet 
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Kind Regards