Hurting

So around 4am I woke up to my back hurting (it hurt so much I had to put a little balled up pillow right at the spot it was hurting to ease it off a bit, didn't help much tho) and now it's 10:30am and still hurting and I already did two #2's and one was like diahrea (sorry for the tmi). Could this be early labor? I'm a ftm so I don't know.