Below your urethra, you'll see a larger opening, which is your vagina, the pathway in and out of your reproductive system. It may be partially covered by your hymen, a thin stretch of skin. Some young women don't have a hymen at all. Others have stretched it or torn it using tampons or exercising. Some hymens tear naturally in childhood, some during puberty.
Some hymens have one hole, others have several.
A hymen is not an indicator of virginity at all. A virgin is someone who hasn't had sexual intercourse. The vaginal opening is the connection between your external and internal genitals. Check it out. If you insert a finger, you can feel the moist walls.