Mandy did you get the progestrone check?
Your chart is still in the early stages. The dip yesterday is potentially a good sign if it goes back up and stays up today. A few more temps will tell a lot more of the picture.
It sounds to me like (I may be wrong) that your "friend" tricked her bf and got pg to keep a hold on him. A baby should never be conceived as a pawn, nor brought into the world to be a bargaining chip. It is a precious gift and should always be looked upon that way. I hope they both mature and realize what wonderful little beings they are responsible for raising and loving.