Dreams.

Okay So for the last three nights in a row I have been having these dreams that I'm pregnant with sextuplets. There all different dreams but in some way there connected like me having dreams that I'm pregnant with sextuplets. And some people tell me if I have weird dreams or even night mates It could be because I'm pregnant. And I have taken tests and they are negative. But thy keep telling me women that are pregnant have dreams and nightmares like this. What do dreams like this mean?? Any advice??