Question about checking cervix (Tmi)

I tried checking my cervix last night but I don't really know if I found it. I touched something soft all the way in the back of my vagina but couldn't tell if it was open or closed. What ever I touched seemed like it was tilted and more toward my rear end, not straight up my vagina (more to the back). I had a pap smear recently and it took my doctor quite a few tries to find it, my other doctors never had a problem before. Can a cervix shift? ( probably a dumb question but had to ask anyways).