I personally hate mice and I get very scared when I feel I have them in my home, when I feel there are or I saw one I tend to have dream of them. Maybe you think you have them?
You may be giving birth to one: (sorry.
.... Lol sorry weird mood today. Is this a serious question? If so, what do you associate mice/rats with in your mind? Lack of cleanliness? Maybe you're worried about keeping everything clean and tidy when your baby comes .
NOTHING!
Dreams are meaningless mindless drivel ...&.... reproductive status is immaterial to that fact!!