Sonnet 73 - Reflection

So many questions come from these sonnets and the mystery behind it all. Maybe we'll never find the truth but I wouldn't discredit the brilliance of the word play Shakespeare uses. This sonnet kicks off Autumn with a conundrum. This young man's life is on the decline and before the winter comes, for it is Autumn, he must have children. After the sunset fades in this season, there wont be anymore time. As we know, the boy wont be beautiful for much longer. My mind ran away with the couplet in this sonnet. If the speaker is William Shakespeare could it be that boy isn't having children because he loves the speaker, a man? It seems out of place because of the many times the speaker has suggested that the boy have children. Could this all be a ruse to satisfy the parents? Is the speaker a man? Is Shakespeare writing for a girl to the young man? It's a hard question to answer with what little clues we have regarding the young boy and his situation.