Please help me ASAP

I have had this hard lump under my skin for maybe a month now.. It's between my vagina lip and my labia. It doesn't really move, it doesn't hurt, it's not irritated, doesn't have a head on it for I have tried to pop it.. It doesn't even bother me but it is just there!! I have had one partner in the last two years. It's like half the size of a pea.. Please help. I'm freaking out and my insurance was taken away.