One last chance?

During their last year at Hogwarts Draco and Harry became friends. They started dating once they had finished school, and were even engaged to marry soon. Then Harry found out he was pregnant with Draco's child, he goes to tell Draco only for Lucius, who had escaped Azkaban, to threaten him with death if he ever went near Draco again, so he left afraid he would lose the child. Only leaving a note for Draco to find.

And on top of that Andromeda Tonks the legal gaurdian of Teddy Lupin passed away and as Harry is the child's Godfather he was put in the position of taking Teddy on as his.