I picked up a pack of instead cups today and followed the instructions to insert them. I pushed down and back as far as I could, while sitting on the toilet, slightly leaning forward. I pushed it in so that the outer ring was back behind my pubic bone, but as soon as I sat up straight it slid back out. I tried to insert the damn thing about 2 dozen times today. I didn't feel uncomfortable, but it leaked all over the place. I know it wasn't in there right. I ended up taking it out and wearing a regular pad. I was so frustrated that I can't get this thing in, I was almost in tears. I would like to get a Diva Cup, but I can't even insert the Instead Cup.