Maybe sooner than we thought!!

I went to my 36 week check up today and found out that my fundal height is measuring at 39 weeks and I'm 3 cm dilated...she said I could still walk around a 3 cm for a month...I go for an ultrasound at my next appt...she said all the pains I've been having are most likely contractions since 2 weeks ago I was only 1/2 cm dilated...hopefully she stays in until after my baby shower on Saturday!