Wow bz, your dd must be very tidy! I have to hoover all the farking time coz my dd is a big crumb monster! I leave her alone for 5 mins with no food and I come back and there are crumbs all over the floor! Does sound like nesting though! My nesting has come in the form of decorating, alas I don't feel the need to clean!
Glad it's not hairy bumper! I think if it's flat and hard it means that nothing is happening yet. If it is soft and like a pursed mouth then that means your cervix is ripe and ready!