Doctor Cancelled First Appointment

Jordan • 23. Married. Pregnant with our little boy!💙💙

So I go in this past Thursday to finally have my first OB appointment. I am already 11 weeks pregnant mind you and also have severe endometriosis. I get there 45 minutes early and the secretary at the front desk says, “I’m sorry but we cancelled your appointment.” I asked why and her response was, “we just did.” I’ve never been so angry in my entire life and so they rescheduled me to be seen in the next 3 weeks. I’ll be 14 weeks pregnant by then. Am I allowed to be angry at them for doing this?!? Sadly I can’t go anywhere else because the only other place we have that could see me doesn’t have an opening until November.