I had a dream my dad died . help me out, please?

hey guys, i had a dream my dad died a few months back. i rememeber seeing his tombstone and it said for the death date april 5. but no year. there was a birthdate that wasnt his. ive had dreams that he died before. like a heart attack or being shot but idk why, this one stuck with me. is this just a nightmare or do you think its more than that. some suggest its just that others say it could mean i i feel like im loosing him. others say that something good will happen on april 5th. any ideas cuz its kinda scaring me and i wont be able to move on until april 6th