Hi loreen – thanks for your question! We get a lot of thick hymen questions here, although you’re right in that it’s not a well-discussed topic at all, especially in sex education.
I suspect you’d need to see a gynecologist to know for sure whether the hymen is the issue, but in the meantime, can you tell us more about what happens in regard to your vagina at times besides when you’re attempting intercourse? Are you able to insert a finger or tampon? How much of his penis was your partner able to insert? The hymen is quite close to the entrance to the vagina (less than an inch) so if he inserted more of his penis than that it might not have been an issue with your hymen.