A few thoughts:

It doesn't matter if your uterus is anteverted or retroverted ("tipped"): the keeper and diva are less likely to work well for women whose anatomy isn't the usual "pointing down when standing up." However, Instead might work really well, since the key is seating one edge of it around the cervix and the other against the pelvic anatomy -- pelvic bone or coccyx. For retroverted and "normal" women, the key is to angle *back* when inserting, and using a finger to tuck the "front" aspect up high enough to get it to catch under the pelvic bone. For anteverted women, the opposite: angle forward to go around the cervix, and with a finger tuck the back edge high enough against the upper and backmost part of the vagina, above the pelvic floor muscles. Slipping out tends to happen most in women with very relaxed pelvic floors (from childbirth, natural anatomy, big partners, or not enough kegels ) or if the cup hasn't been tucked up high enough once inserted. You've *got* to anchor it around the cervix and another anatomical point, or it WILL come out and you WILL leak. It doesn't need to be perpendicular to the vaginal canal, just needs to be anchored right.



Re: birth control pills and PCOS: the pills may make you regular and more predictable, but they don't "help" your body any other way. The periods you get on the pill aren't the same as natural periods. It's withdrawal bleeding, just a bodily response to the progesterone no longer being there. So if unpredectable but fewer periods are appealing to you, ditch the pills! But if the predictability is nice, keep 'em.