The Beautiful Cervix Project is (maybe) your new favorite extremely NSFW blog: its goal is to celebrate the beauty and intricacies of women's bodies, via close-up cervix photos. It's run by a doula/artist, which makes a lot of sense — and, according to her, it has many uses:

People have used this information for many purposes, including to realize the normalcy of their body’s cyclical changes, to celebrate their bodies, to achieve or avoid pregnancy, to understand their partners more, to further their study of medicine and health, and to promote healing through cervix-inspired art.

Celebrate/realize/learn away!