Did your baby drop early (before 33w) but was born at 37+w or later?

I'm 31w and I swear she's just dropped overnight. Lots of sudden pelvic pressure, and sharp, bone on bone pain. At times it feels she's gonna fall out. And visibly my bump is much lower. Braxton hicks aren't painful tho or increasing in number yet so I am not worried yet of preterm labor. Just curious if anyone else dropped early and still managed to have a full term baby. This is my third and my second baby dropped at 36w and hung on for 40w.