Thebeginner, you seem to misinformed on female anatomy.
Very simple anatomy lesson here, the clitoris extends it’s roots to the labia minora and into a U-shape in front of the urethra. This is where fingering her with a come hither motion gets her off. Past the urethra you have the anterior and posterior fornix’s which are really just above and below the cervix. The only difference between the two is the anterior is easier to access by deeper penetration in missionary position and the posterior is easier to access with doggy style.
The only reason you may be giving her pain by hitting her cervix is if she’s at an angle where her ovaries are constricted. So if you go deeper without hurting her, you either do her doggy style and leaning forward/lying doggy style or missionary with a pillow unter her hips. After she comes the first time her ovaries and cervix will relax enough for your to fuck her any which way. And the cool thing you probably didn’t know is that the cervix dips down into the vagina when she’s having an orgasm and relaxes a little.
Bpel: 8", Bpeg: 6", Mbeg: 5.75", Meg: 5.5", Aheg: 5.25", Heg: 4.5" - 11/18/11
Bpel: 8", Bpeg: 6", Mbeg: 5.875", Meg: 5.63", Aheg: 5.38", Heg: 4.75" - 5/18/12
Bpel:+1/4", Bpeg:6", Mbeg: 5.875", Meg:+1/16", Aheg: +1/16", Heg: +1/16" - 6/18/12