Vagina Ache

So this ache started a couple hours ago. My vagina is having these weird "aches" like weird feeling. Me and SO haven't had intercourse for about 2 days. So I know its not from that. My period isn't due for another two weeks. Its almost like those period aches you get before your period. But the odd thing is I don't get my period like I said for another 2 weeks. What and why could this be?