Missed miscarriage

How common po ang miscarriage or no heartbeat at 11 weeks? Next year January pa po kasi ang balik ko kay OB and my anxiety is hitting me. Last na ultrasound ko is 7w5d pa ko, now I'm on my 11w6d na. Wala naman po ako pain or spotting. Medyo nag worry lang ako kung okay lang ba si baby ko. July 2023 po ang EDD ko. Can someone please enlighten me.