A third consequence of Mary's 'yes' to God concerning Jesus was that she faced the certainty of losing the love of her life: Joseph. She weighed up everything very carefully, knowing that her response in faith to God's word and will might mean the end of her relationship to him. Joseph had the right to 'divorce' Mary because of this (under Jewish custom of the time couples were regarded as semi-married when they were betrothed). We know from the Gospels that Joseph had considered doing so, until God spoke to him in a dream. Furthermore, Joseph could have been the one to stone her to death, if he so wished.
Mary's life was never to be the same again after saying 'yes' to God. Even though she loved Joseph and wanted, more than anything else, to spend the rest of her life with him, she was prepared to lose him for the sake of God's purpose. Mary had a greater love in her life: she loved God with all her heart, and any other love would have to find its place within that greater love. Her faith was an act of love for God.
This is often the big one for us. When God invades our lives his question is always, 'do you love me more than anything else?' He doesn't need our love; he is not lonely and desperate for love. But we were created to love him; and life only makes sense and has the right perspectives when we love him more than anything else. It was Jim Elliot who said, 'he is no fool who gives what he cannot keep to gain what he cannot lose.' In Philippians 3 Paul regarded everything as excrement compared to knowing and loving God. Faith works out of a love relationship with God. Faith sees the true value of God.
Of course, the great thing about Mary's life was that God blessed her faith and obedience. She didn't lose Joseph after all; she actually gave birth to and raised the Saviour of the world!; she and Joseph had at least six more children; and she was one of the 120 at Pentecost. Mary got filled with the Holy Spirit that day, spoke in new tongues and ended up in the street, praising God and being mistaken for a drunk! She who had carried the Creator of the world in her womb was indwelt by the Spirit of that Creator God.
She had quite a life, don't you think?