Imperforate hymen?

How do i know if i have a imperforate hymen? Im 16 and I really can’t tell if it is after looking in the mirror. I have normal periods and I’ve had sex twice. It really makes me wanna cry because i know if i do i’d have to get surgery. I looked up symptoms but i have none of them such as pain. Im scared to talk to my mom about it though shes a nurse because its just uncomfortable to come up to her and talk about what type of hymen i have. Should i still be worried? Is it because i may still be going through puberty? I need answers.