In need of insight

Newbie to sharing my struggles. My better half and I have been trying for about 2 years to conceive our first child but to no avail. I'm hesitant to be open about it because our situation is a bit embarrassing(on his end).

I guess sexually frustrated is how I feel lately and it has everything to do with his inability to perform. I feel like crap speaking of his inadequance because he really wants this as much if not more than I...on top of the feeling of betrayal to a confidence. But Im at such a loss right now and my need to talk to someone is becoming more and more vital.

Yesterday was my most fertile day and we tried but he couldn't and I'm starting to feel my chances slipping away.

When I try to talk about his situation with him he tends to get offended but its a discussion that needs to happen.

Is there anyone out there that can give some piece of mind, advice or even an encouraging word? I'm slowly feeling myself give up and at my age I really can't afford to wait.