Hi there. No, probably not getting stuck in your hymen. :>) Maybe you aren't changing it frequently enough if it is puffed up big absorbing your menses. It can hurt when they are dry but also if too full. You only insert to the end of the tampon part (so half of it). Don't go further than that. You should have the strings readily hanging out. It takes a little getting used to them but it will be old hat soon. Hang in there. good luck