Do you have the NHS app? I get reminders through there for all of my appointments.
I got letters for scans then got text reminders for midwife appointments as they were at my GP. Both also showed on the NHS app x
I think I got hospital appointments through the nhs app. I just added appointments to my phone calendar so I didn’t forget
I don’t remember ever getting anything to remind me! So had to try and get that baby brain working!!