I have banged a cervix from time to time, and in my experience, most women do not find it pleasurable. Yet some don't find it uncomfortable and some may even be stimulated by it, so I don't think you can apply a rule to all women.
And yes, it is possible to traumatize a woman's ovary with vaginal sex. it isn't terribly common, however. If you are long enough to reach past the cervix to the deepest portion of the vagina at the posterior fornix, you are very close to the so-called cul-de-sac of the peritoneal cavity or "pouch of Douglas". There is very little tissue between the cul-de-sac and the inside of the vaginal canal at the posterior fornix.
The ovaries are in the peritoneal cavity, not the vagina, of course. But the ovaries are suspended on the ovarian ligaments and they can move around a bit, just like a guy's testes move around. If an ovary happens to be sitting in the cul-de-sac when a glans penis makes vigorous contact with the wall of the vagina at the posterior fornix, it can be equivalent to getting whacked in a nut.
And I agree with the last post. I am about 7.6 inches BPenis EnlargementL with an "insertable" or fuctional length of about 7.2 inches. I have been able to bottom out in some, but not all of the female partners I have had, but usually only in positions that allowed for maximal penetration. Very roughly, I would guess the average depth of the aroused vaginal canal is in the 7 to 7.5 inch range (obviously, many are shallower or deeper). I'm not certain that all women find it desirable to have a partner that bottoms out, though, but I suspect most guys with a fiunctional length of 8 inches would do so in most women.