Advice please! FTM

So I know during pregnancy almost everywhere can hurt at some point but just this past 24 hours or so I feel a really odd sore pain where I guess you could say my legs meet the area where my vagina is. My vagina doesn't feel sore at all, no pressure or anything like that, just an odd pain in that bending area. I haven't done anything different in my daily routine or anything like that. Has anyone else experienced this? Plan on talking to my OB about it Tuesday at my appt. Thanks in advance ladies!