Vag estrogen without progesterone?

45 year old. Is it ok to only use the vag estrogen cream (for GSM/gyne and urinary symptoms) and not taking the oral progesterone I was prescribed? I’m nervous about the potential side effects on oral p but read that it’s not great to take estrogen without p if I still have a uterus. I did got these prescriptions from a nurse practitioner on an online health app (Felix). My own family doctor has always brushed me off when I mention peri symptoms so I gave up on bringing it up to her.