I'm new to this site and I'm trying to find answers about menstrual cups. I've tried to email the sites directly but haven't gotten any answers. My first question is, do they touch your cervix? My next question is, do you push them up in you like a tampon or do you push them back like I've heard you do with the instead cup? My last question is, how do I know what size to get if I decide to get one? I know that they come in two sizes and that they last about 10 years. But my problem is that I"m 24 and have never had children which puts me under one size but if it last for 10 years in another 6 years I'll have to purchas the other size or if I have children. So do I get both sizes so that I don't have to pay for another one later on? Also what do you all think of the reuseable menstrual cups? Are they worth it?