Brandi-

A couple of thoughts.

Your husband should definitely talk to his doctor (and believe me it won't be the first time his doctor has had a conversation on the topic). Encourage him to bring up the issue first thing during his next visit (if he's nervous and waits until the very last minute there may not be time to adequately discuss it). It's fine if you want to talk to the doctor, but it's his body and he's the one who really needs to have the conversation.

Blood pressure meds can definitely cause ED. That said, not controlling high blood pressure is not a particularly good idea. It might be worth trying a different med though.

High blood pressure is not a contraindication to taking meds for ED (active chest pain or nitrate use definitely would be though). If it's something that your husband and you want to try, talk to the doctor and get his/her opinion.

Lastly, don't be afraid to talk about this- there are more people out there than you think whose sex lives are less than perfect.