Cervix position after conceiving?

Kaitlyn • Surprise! Baby number three on the way! Twin sisters who are about to both become big sisters!
Hi! I'm 12DPO, and my cervix has pulled back a little more and become firm. After ovulating, it was very soft and low, then eventually began to literally "turn" around almost. Since then it has become firm and pulled back. Anyone know what's typical? Or have their own expierence to share? 
​Thanks!