I wonder whether this dream is about your relationship with your girlfriend. You are heading off on an adventure together. You don't know where you are going, into unchartered territory. You feel like you don't have the right map or plan to show you where to go in your relationship, in your trip through life together. Are you considering proposing to your girlfriend? If so, you fear she will reject you. I think the miscarriage gives a clue to the rejection: it is premature. Do you think it is premature to propose at this stage in your life's journey?