Dreaming about being pregnant is neither good nor bad, it simply happens. In fact, dreams of being pregnant are quite common, particularly among adolescent girls. But anyone, including men, can dream of being pregnant when they are "developing" something that is important. The webpage linked below has examples and discussion of various types of pregnancy dreams.
Just tell him
it means that your unsure of your relationship with the guy, and that you really like your boyfriend. You get easily jealous if there would be a girl trying to steal your boyfriend.
It depends on if she conceived the child before or after she paired up with the boyfriend and if the boyfriend was aware of the girl being pregnant at the time.
What is your question?
you were thinking of being close and peaceful with having a family fulfilment.
only if you get pregnant
Only if she has permission from her parents. Being pregnant does make them an adult.