Dreaming of impregnating someone is a warning sign as per dream interpretation and meaning. The dream is trying to warn you about your life decisions and friends. It is asking you to be cautious. Dreams of impregnating someone and you do not know the person in the dream is a sign of serious problems with opposite sex and this might shake up your life.
Dreaming of impregnating someone and you are scared or crying in the dream means you might face unexpected problems in life due to a bad decision you made recently.
For some reason you are happy in the dream then it means you will achieve success in an endeavor. You might get the expected result from a work you had done earlier. It also means you will defeat your enemies.
Dream of impregnating and you know the person in the dream means you will get into trouble due to the action of friend or colleague. It is a warning sign and you need to be careful.
Dreams of impregnating someone and you see other people in the dream means your irresponsible action will attract attention of other people resulting in public shame, embarrassment or legal trouble.