Whenever I insert a tampon, I experience a cramping and intense feeling of pressure type pain in my uterus/stomach area. It only occurs once the tampon is in but I am attempting to push it out of the applicator. It feels challenging to push it out, like something is blocking it. I have to try multiple different angles and suck it up in order to get it to go in. I use junior sized tampons so I know that it is not that they are too large. I don't know what else it could be. I am sexually active but don't experience this same pain during sex, only a little pain at the beginning of penetration- the pain subsides once sex fully begins.