Cervix felt low and open! Do I need to be concerned?

I just put in my progesterone suppository and while it went in I felt my cervix. It seemed to be low, soft, and open. It wasn't ever like that before. Do I need to be concerned? I am 11 weeks pregnant. My boobs hurt the absolute worst they've ever today and I had occasional round ligament pains.  I feel good otherwise, but just not sure what to think about my cervix. Advise??