How soon after you get to 3cm so you go into active labor?

Pretty sure its 10 cm

Or 5 I could be wrong

5 cm is considered active labor.

How long do you have to wait until you get that far

Depends on the person and contractions. There's no real evidenced timeline.

I’m not exactly sure, but Friday morning I was 2cm, Saturday afternoon I was 10cm.

I’ve been 2 cm for two weeks now. Yesterday afternoon I noticed that i lost a small chunk of my plug, this evening the same thing, contractions are still here but they come and go. They come on stronger when I am stressed out like this evening

I was 4 cm for two weeks lol

I was at 3cm when I checked in at L&D with my son..they induced me around 11am, I got to 4cm a little after 1pm & they had to keep increasing pitocin levels bc 7-8pm roled around & I was still at a 4 😩 he was born around a quarter till midnight.