Really weird vaginal opening??

I will describe this as best I can without a photo, but I recently examined myself down south and noticed that my vaginal opening looks a little weird. Between my urethra and vagina is what I'm assuming is just have a really oddly shaped hymen. It is very round in the center, almost like if a little tongue were poking out of it. 
I am a virgin, though I have masturabted and didn't find it too difficult to finger myself with two, anything more than that is too much, though... I am about to have sex for the first time and this "thing" really is concerning me. It's not quite like any of the other diagrams of hymens I've ever seen. Please help?! I'm kind of freaking out a tiny bit....