Crazy dreams?? Ttc.....

I'm 5 days away from af. Already did a test yesterday which was negative. I know that was probably too early to test anyway but couldn't help it. Anyway the past week I have been having crazy dreams, these have felt so real!! I have actually woke up sometimes unsure wether it's been a dream or really happened!! Well my question is.. Has any one else had dreams like this when they have been very early on in pregnancy? Could it be linked or am I just wishful thinking?? X