Is it possible that my vagina is too short?

I have done research on this and as far as i know the cervix shouldn't be that far inside, but they usually say you can reach it if you push your fingers really deep inside and some people can't even reach it. The problem is that I can reach my cervix VERY easily with my fingers. and yes, i am sure that it is my cervix. And it doesn't change when i'm aroused. Is it possible for women to have short vaginas just like how some men have small penises? I'm a virgin and afraid that sex will be uncomfortable for me since the average penis is of course longer than my finger. I've heard that the vagina can stretch enough to accomodate a penis of any size but it just seems like it won't go inside all the way. Is this possible?