Dream or reality..?

Woke up few minutes ago..and one question is in me mind. was it dream or reality? or maybe better to say what is DREAM. do you believe in parallel worlds?what if during our sleeps we are able to enter other worlds, other lifes? what if it is the same real or maybe even more real?
I can tell you more about my dream. Even now, when I am already awake I feel the atmosphere of that previous life. in to my dream came my friend, man. short prestory:  few years ago, I was preparing to leave my country and at this time when we had just one week we became very close. when I left we still were writing letters to each other, but then time and distance made its job. now I already have other boyfriend, he is also not alone any more. so I am coming back to the dream: 
first part: we are in a countryside, in a big yard. me, him and other girls. we know that Andrius (his name), hid his personal box somethere. all girls are digging
the ground to find it. on the other side of bachyard I see the big stones. I move one stone and find that box.sad, that I dont remember what was in it.
second part: I am finding out that I am pregnant from him, but  I know that he is guilty because of somethig and he feels not comfortable. I decide not to say about my pregnancy. also I know that his current girl is also pregnant.
Third part: I am becoming blind. I need to go and I am searching on the ground for something and I feel when somebody is kissing me to the lips. I know that its him. he is so gentle to me. I am decided not to push him away and let him to kiss me with idea that he can get only this kiss because he  will get nothing more... I remember that I am very happy that I have his child in me.
fourth part: I am still blind.I am in airport,have to show my passport but I cant find it. I am explaning the situation and feel so bad, everybody think that its because I cant find, but inside I am crying that we have to separate...
that is all my dream. last months I didnt think about him at all. I am very happy in my new realtionships. thats why for me was so strange to have this kind of dream. when we had that one last week we even didnt have sex. it was nothing about it. now you can imagine how I feel. this dream was very strong emotionally....