Another negative is overshadowing my wedding

I get to marry the love of my life in 28 days. I am truly blessed to have such a wonderful man love me. But I can't stop dreaming about the day I get to tell him he is going to be a daddy. And its just not happening. I should be more excited about our wedding, but instead Im sad and scared I will never have the family ive wanted my whole life. I know we will have a happy life together, but what I dont know is if I can feel complete without the little baby I dream of constantly. We thought it was our month. But god must be saying not yet.