Braxton hicks?

So I get this tight feeling in my adamine down to my pelvis and have a little pressure in my inner thigh, and then after that happens like a minute later I'll get some sharp pressure like it kinda hurts in my vagina. Then it'll stop and they are about 8-10 minutes apart. They happened the whole last hour of my shift. I've never hahd this until today. So I'm not sure if it's Braxton hicks or if it's something else. I'm 30 weeks as of 48 minutes ago. (12:48am my time)