Little help here please

HI, Name is Brittany. last night i had a really troubling dream. Ill explain the dream first and then some weird stuff after it. (I dont remember much of the dream but ill try my best)
It started off as a family get together, everyone getting along laughing, talking eating good food. Everyone was pretty much happy. Everyone was there including my dead family members. Well as the day wears on in the dream my father and grandfather die and everyone who was dead disappears. I started crying because at this point my dad wouldnt be able to walk me down the aisle. (i am getting married in a year and few months) as the dream wears on things just get worse by the feeling i got. I awoke crying feeling miserable. The feelings within the dream all seemed real, sad happy all of it. No one in the dream including myself was shocked that my dead family members were at the get together.
Now i guess some would look at this and say im just a nervous wreck about my dad not being at my wedding. Which could be true because he is a deputy on the drug unit and there is no way of knowing he will come home at all everyday. But the weird part is my mom awoke around the same time this morning and later told me she had a dream about my aunt (her sister) dieing. I thought it might be connected because of our relationship i am close to my family. Then it gets weirder. My friend tells me about a dream she had around the time, her dad died in the dream and her dead grandmother was there.
Maybe someone can help me figure this out? I keep thinking they might be connected but im not sure what they mean.
any help at all would be appreciated :)
Thanks
-Britt