You can try to write in and check. Same thing happened to me after my week 26 review and no appointment after, i found the appointment under open date at health hub. wrote in and they gave me an appointment.
ya I think there is an option we might have pressed then they won't message at our hp. you try see health hub or health buddy in case the appointment shows up there.
my due date is july try check on your health hub app sometimes they wont message u they will put on there your appoinmnet
are you subsidized?