As long as she knows when the money has all gone so will he.  A promise is a comfort to a fool. If she is happy to keep giving then by all means but if its marriage she's after she needs to stop.

Impotence is an inability to get a proper erection only and not a defect in sperm production.  If you are having segxwal contact she can get pregnant. I would be very surprised if she is not aware of your problem. You will surprised to know 90 % of impotence is psychological only, irritating wife , work pressure, lack of healthy food and proper sleep are other reasons.  With little care and psychological support he may recover within days however if you suffer from high blood pressure the medication can cause impotence. With diet and exercise the dosage can be reduce and eventually stopped. Everything should return to normal. Go to your doctor and get a sperm count and discuss non pen*** s*x what is the likely hood that its your baby. You could wait and do a parenty check. Kit can be purchased on line from the US and requires one drop of blood by way of a thumb prick. This deception has gone on so long  you might as well get all the facts before you decide you next steps. Would you be happy bringing up another mans child or happier without your wife. Will you marry again and deceive the next women. You have a lot of issues to confront.