cyst ?

So I'm laying down in my bed naked & I feel a ball on my vagina like in my vagina on the top next to my bikini line . I started touching it, feeling around it and it feels like a cyst it looks like it has a little head but then again idk if it's a cyst or something else. Idk what to do guys I'm really scared that it can be something worse. I'm scared that I might not be able to get pregannt because of this ! I'm so worried and scared . Ik I should go to the doctor but I don't even know how to call to try to make the appt this is embarrassing! Help me!