Sounds like you're losing your mucus plug. You didn't say how far along you are. You can lose your mucus plug a little at a time or all at once a month before delivery. You can also be slightly dilated for a month as well. This only means that you'll be having a baby soon. Not necessarily very soon. Stick with your due date. When your water breaks that's when you need to call a doctor right away as the baby will need to be delivered within 24 hours or so.
****I wanted to add that everyone talking about meconium, never heard of the color of the plug having anything to do with that. With my first son, my plug was white, yellow and green, like firm boogers. It came out a little at a time for a month. The docs knew and it was never questioned. It was normal! With my second son, it came out all at once when labor started. It was clear like sticky snot. Sorry to be blunt. That was normal too. It can have a tinge of blood as well. All normal. I'm wondering if women are picking up on an old wives tale or something. Meconium doesn't happen very often at all, but it does. It can happen at any time, not just overdue babies. Never heard of that either. I'm 46, have 5 kids and have known a ton of women over the years with pregnancies. Do not let some women scare you. If you do feel the need to call the doc to lesson your worries, do so. But do not worry! Everything sounds normal to me!
K. B
mom to 5 including triplets