Meanings from dreammoods. Fuller meanings on the site.
Pregnancy is an aspect of your self that is growing, not necessarily a baby. Police represent rules & control. Prison is part of you that is trying to express itself. A doorbell is opening to new experiences, something overlooked or an emerging opportunity. A fence w/ 2 holes in it can be seeing a way through obstacles.
Given the note about your letting go of old patterns to live in higher consciousness l also think this is what the dream is about, albeit it using some fairly dramatic imagery.