Weird sharp twinges and light cramping in right side/lower abdomen at 26 weeks pregnant?

Today I started to notice that I'm having these little sharp twinges,almost feels like needles, in my lower right side and it shoots to my but they only last for like 5 sec and only come every 20 minutes or so. Now I'm starting to have a little cramping almost like my muscle in my right side toward my hip is tightening up. Could this be braxton hicks contractions or is it round ligament pain? I'm 26 weeks pregnant today.