Ay mama, totally understand ang kaba mo, ginawa din ito ng karamihan sa amin na may discrepancy between ultrasound at LMP dates! The good news is you're already 1cm dilated and may contractions na, so your body is definitely getting ready, and di ka overdue based sa ultrasound date pa lang (tomorrow pa). Mukhang perfect timing na ang check-up mo bukas with your midwife, she'll be able to reassure you and see kung gaano kalayo na talaga ang labor progression mo, kaya just breathe and trust your body. A few of us found na ang ultrasound dating sa early pregnancy is usually more accurate anyway, especially for dating purposes, so Feb 23 is likely your real due date. You're in good hands, at it sounds like labor could happen anytime now, stay positive, hydrate, at get some rest while you can!