I remember some of the women posting on this board about some sort of thing to catch menstrual blood. I believe it was also mentioned that it was possible to have sex while wearing it. Does anyone remember what this is called? Also, how do ya’ll (I live close enough to the south that I have to throw in a “ya’ll” every now and then) who use it like it?
There are actually a few such devices, though I’m not sure which one exactly you’re thinking of.
Three of the main brands of menstrual cups:
Mooncup
The Keeper
Instead SoftCup
Numerous other brands exist; searching for “menstrual cups” will bring up a lot of great information.
All basically the same concept, different materials and designs. The Instead cups are disposable and you buy them in packs of 24; Mooncup and Keeper are both reusable and washable.
I have heard the most positive remarks about the Instead cup, probably because its material is softer and the shape seems a bit more forgiving.
I have heard overwhelmingly positive remarks from those women who have ventured to try any of these, very few reports of unpleasant experiences.
I’ve been wanting to try a menstrual cup for some time now, but I’m not sure if any would be a comfortable fit - even those “slimfit” tampons are a bit painful to me and difficult to insert.
… Oh, and this may be one of those posts where it would be wise to confirm that, despite my username, I am indeed female. 
I think SPBM covered most of them, except the Diva Cup. I have several friends who use them and rave about them. When I eventually start menstruating again ( 
) I’ll probably use one of these, along with cloth pads.
I think it would be possible to have sex with one of these in, but I can’t imagine doing so. The Diva Cup is pretty long, maybe an inch and a half or two inches? and I’d think it would get whacked against your cervix and end up being messier than it’s worth. If you’re (or your partner) is worried about menstrual flow and sex, you might want to consider a cervical cap to use during that time. Added contraception, and keeps the menstrual blood out of the way, for those women who feel ooky about it.
From the website:
Yeah, I think it’s too long to be safe and/or effective in place during intercourse.
I don’t remember what the instructions say, but I’d think that sex wouldn’t be too bad with the instead cup. I bought a package last month (They’ve started selling them in small packages, I guess for those of us who wanted to try them, but were daunted by the big, huge box.), and the “cup” is just a very thin, clear, flexible material.
Unfortunately, I started my period last month the day before I was going to be spending all day in the airport/airplane, so I opted for the old reliable tampon. I can’t wait to get my period this month! 
I’m one of the unfortunate few when it comes to Instead, they just do not fit.
Yeah, the Instead cup seems to be the only mentioned device that is safe for use during intercourse. All the other cups are of a similar elongated shape, and made of harder materials than Instead - they all purport to last 10 or more years. One of the draws of these cups is environmental friendliness. Even using multiple Instead cups reduces the amount of waste produced as compared to pads or tampons, though.
The Instead cup is fairly sex-friendly; unobtrusive, clean, discreet, that kind of thing.
I switched to Instead recently, and I’m a full fledged convert. It’s like getting a week of my life back every month.
I opened this thread out of curiosity!!! and I started reading and I wanted to stop but I could not turn away. God, what is wrong with me? I’m a :wally
It even has the word “menstrual” IN the thread title.
I swear men think it’s a code word we use to disguise our plans for total global domination.
Quick, monica, hide the plans!
I don’t know about all those reusable cup thingys. They seem kind of… ooky.
I already hate the feeling of a tampon so much that I can’t wear them. So how much do I want to jam a plastic cup up there?
How do you people do it?
Well the Instead isn’t resuable, it’s disposable. It’s not plastic in the sense that a plastic drinking cup is plastic, it has a soft rubbery rim and the cup part actually resembles the plastic of a sandwich baggie - not the zipper kind, but the thin fold-the-top-over kind. And if you do it right, you don’t feel it at all - a world better than tampons.
If you stick a bunch of food service type gloves in your purse, there’s no mess whatsoever, it’s all disposable, and once you get used to it, it’s really, really much more convenient. I would, however, recommend using it for the first time on a day when you’re home.