I was 3 cm and 100% effaced for 1-2 weeks (can't remember exactly). Before that I was 2-3cm for another couple weeks.
It's still a little early for your baby to come just yet but I definitely understand your excitement.
At 36 weeks I had a bloody show and went into labor at 38 weeks. At the end of my 37 weeks I was checked (for the first time) and was 4-5cm and just about 100% effaced. 2 days later I had my son. It's hard to tell. It could be another month or it could be sooner! Either way, you are very close. Good luck!!
i was 1cm dialated, 80% effaced and +1 station (baby was way below pelvis) for about a month then my water just broke out of knowhere. My mother was 2cm and 80% for 3 months. It ***** but your close and only a few weeks away. I went on my due date 4 days ago.