TMI - Uterus position? Helpp!

So iv never been one to check my uterus position etc buuuuttt since being pregnant i have found that when i am having sex with my husband missionary position is really really uncomfortable. Almost like its too tight so i turn over and from the back feels perfect. Like no trouble going in and feels great.

So my question is - does that mean my uterus position has changed? Is it higher or lower? Any help is appreciated Ladies x

UPDATE: sorry guys i meant CERVIX not uterus! Haha