Can Cervix Expand With Use Of Mirena When Your Pelvis Starts To Expand For Baby, Does It Dilate The Cervix?

When your pelvis starts to expand for baby, does it dilate the cervix? - can cervix expand with use of mirena

I ask because on Friday the appointment with my doctor, my doctor told me I was really a pain in the pelvis and told me that my pelvis stretching out and relaxing to move space for baby, and the contribution. . So I wanted to know if the tank is separated a little help making the cervix to open? I knew the quote above, which was 1 cm. Could be more now?