Dream about pregnancy of sister signifies a controlling father or father figure. You may be expressing some regret or remorse over your actions. You need to take some time out. This points to your desires for a little extra flavor in your life. You are feeling unstable.
Pregnancy of sister dream states the two extremes of your personality. You are going around in circles in some area of your life. There is nothing to show for all the effort that you have dedicated to a project or relationship. This dream is a clue for stress and tension in your life. You are getting the hang of some situation or some task.
If you dreamt about pregnancy of sister:
Team up with someone. Your energy will most certainly help a project that was losing steam. Together, you will accomplish a great deal. The potential for success is there. Your job is to help define and direct the energy more efficiently.