Braxton Hicks?

Hi guys, I'm a FTM and I am 27w4d, just a few minutes ago I had to use the restroom (#1 not #2 (TMI sorry just trying to explain what all happened) ) and as I got up to wipe I leaned back a little an felt a pulling in my stomach, which I assume was round ligament pain, but when I walked down stairs I felt of my lower stomach an it seemed harder than usual but I wasn't feeling a tightening sensation or anything and now my stomach feels like it usually does again, not so hard/tight.. Could this have been a BH contraction and I not even have known or felt it besides me touching my belly an feeling it was harder than usual?

Sorry for the long post just a curious FTM...