Cervix Question

Kenzie
I was given 3 different cervical measurements today. 2.55, 2.57, 2.99 cm. I'm 21 weeks and 2 days. My doctor and the tech said it was fine but I'm seeing all of this preterm labor stuff from everyone else. I'm scared to DEATH. Everyone says they had strict bed rest and an emergency stitch. I just got sent home and told everything was fine... the nurses who are at the front desk aren't helpful and never end up getting a message to a doctor to call me back. I live in a small town and with my insurance they are really my only option :( what do yall think? Does that sound okay?