exciting!!
Yeah squishy cervix means its on its way, (it softens, then thins, then opens) but just like those early BH/contractions, it can happen well before true labour.
I did heaps of reading on when labour actually starts, and the thing is, theres no real definition.
Mild contractions could last only a few minutes before the stronger ones start, or it could last days

the thing is, the pain is definately for real, so no matter how long it lasts, use whatever techniques you need to cope.
I think they dont call it real labour until they are regular and stay that way.

but whatever your birth plan is, you're allowed to progress to the next stage of it whenever you need to!

wishing you all the best for a smooth, safe and confident labour!