Life can be very tragic, and the true blessing that God has given us is love. I understand why you doubted your relationship at this difficult time, but it is possible for you to support each other and for your relationship to become stronger. If you give each other time and support to grieve what is absolutely a loss to you now, you might find that there are other ways to fulfill your desire for a certain kind of family structure. Just don't rush it - allow yourself to feel whatever you're feeling now.

My thoughts are with both of you.