Hey mama! Based sa last ultrasound mo na 39w3d, yan na talaga ang mas accurate, ultrasound is more reliable than LMP especially ngayon na malapit na kang manganak, kaya base doon na lang! You're basically full-term na at pwedeng mag-labor anytime now, so I totally get the excitement and impatience haha, pero seryoso check with your OB kung may actual signs of labor na (regular contractions, cervical changes) kasi minsan excited lang tayo pero not yet labor labor. A few of us moms felt iba-iba ang signs, ang friend ko sudden energy, yung isa painful cramps, yung isa just knowing na ready na baby to come out, so baka within days ka pa lang din! Hang in there, almost there na!