Due date disagreement

I’ve said since the beginning that I’m due Jan 11 they have been saying the 18th to most it’s a 7 day later thing to me it’s huge this guy has been Sitting on my pelvis for weeks an it hurts further more they sent me to another site to get the actual date they told them I was correct an due the 11th should be what they updated it to but they have not problem is I’m high risk an have to get a shot of progesterone once a week for until 35 weeks an they still want to give them to me because they have not updated the date I’m going crazy I’m almost thinking about not going back until after they believe I’m 35 weeks an I crazy