I agree with Jason. That's what I would do too.
Gigi, cuttings can and do bloom within months that they are cut. Heck, I have them bloom while still being rooted. In fact, a San Germaine is blooming right now, and she's not got a single root. Here she is. Because you are in NC, Victoria, and I assume you don't have a greenhouse, I would wait to make your cut(s) in March. You probably can't leave your plumeria outside until April, right?