Aww maligayang-maligan ka na talaga! Honestly, 1cm at 39 weeks is still early, a few of us bumped up to 2-3cm for weeks bago mag-go into active labor, kaya walang definite timeline, it really depends sa baby mo. The good news is you're officially full term na, so baby can come anytime and it's all good! Just rest when you can, eat, and try to stay positive, mine took almost two weeks after 1cm so don't get your hopes up too high pa lang hehe. You'll know when active labor's coming because the contractions will get stronger at regular na, trust me!