nope! they sit in very comfortably so you cant even feel it, when your sitting, standing ect! depending on where you live get the right size and brand Eg: u.s.a: Diva cup. U.k: moon cup ect. hope that helps chick!
You only need one menstrual cup - menstrual cups last for up to 10 years and are reusable. Some people have multiple menstrual cups as they find some different brands work better for them at different points in their cycles, or maybe they will have multiple colours.
Menstrual cups are sold indervidually - as menstrual cups last for up to 10 years there's only a need for one cup. You may mean softcups, these are a similar idea to menstrual cups but either disposable after one use or reusable for up to one cycle - disposable softcups come in boxes of 2, 8, 16, or 24, reusable softcups come in boxes of 2.
Women would use tampons or menstrual pads. There are also options like menstrual release too.
Menstrual flow leaving your body doesn't hurt, however menstrual cramps can hurt - menstrual cramps are a result of hormones being released that cause the uterus to contract in order to push out the menstrual flow. Some women are more sensitive to these hormones than others or produce higher concentrations - however most women can prevent menstrual cramps by regulating their hormones or altering their diets.
You can get a menstrual cup such as a Mooncup which allows you to measure flow exactly. Menstrual cups are an internal menstrual product but safer than tampons so can be worn throughout your period without needing to alternate with pads, without risk of TSS or leaking. Most menstrual cups have measuring points on the side of the cup to allow you to measure flow.
A 1932 menstrual cup looks like most of the menstrual cups we have today. If you search online for history of the menstrual cup you'll see the menstrual cup invented back then looked like a Keeper.
I'm not sure what you're refering to when you say 'ThermoK' - but this material or substance isn't use in menstrual cups. Menstrual cups are made from either medical grade silicone, natural gum rubber, or TPE.
A menstrual cup collects menstrual fluid, instead of absorbing it like a tampon, and is cleaned and reused, with the cup able to last as long as ten years. Menstrual cups have been shown to leak less on average, and they are very comfortable to wear.
This is really based on your personal preference. In my experience, a majority of women seem to use tampons as there is less mess. However, if you are young, you may find that pads are the best way to go until you get more used to the way your body is changing.
No, not all girls have to wear tampons and in fact there's little reason to use tampons when there are other options like pads or menstrual cups available. Girls often use tampons because they prefer them to pads and may not know that options like cups exist and can be much better than tampons. Some people cannot use menstrual cups so will use tampons when they need internal menstrual products.
No, you have a few different sanitary products that you can use such as sanitary pads of varying types, tampons of varying types, sponges, softcups, and menstrual cups. When swimming menstrual cups are a better option than tampons as they can be worn safely for 12 hours with any flow, and don't leak like tampons.
If you're close with your mom then choose a time when you can sit down and talk about cups - parents react well to their children talking to them like responsible adults. Just in case your mom doesn't know about cups have some information printed off (Scarleteen 'What Are Menstrual Cups?' is good to use) to show her - many women are a little closed-minded about cups at first, so don't worry if she isn't receptive at first.Another idea is to wait until you go shopping for period supplies and watch for menstrual cups, casually show them to your mom and mention that you've heard they're good - play-up the benefits of menstrual cups; much safer for teens than tampons, more convenient for you at school, body-positive, can teach you a lot about your body, etc.In particular focus on the benefits in price - menstrual cups can be expensive innitially (although shopping round online you can get cups far cheaper than in stores) but they pay for themselves within a few months and save hundreds compared to tampons and pads - parents like to save money. You can also offer to do housework to earn the cup, offer to pay for part of it with pocket money, or ask for it for a gift - this way your mom knows you're serious about the idea, and she sees it as less of a loss for her if you don't use it.Tips for tampons to your parents about menstrual cups - http://www.lunette.com/blog/2013/07/tips-for-talking-to-your-parents-about-menstrual-cups