32 weeks & feelings like crap

I just hit 32 weeks and I started feeling like crap. I almost feel kind of sick, slightly nauseated off and on. And I’m getting stomach cramping like I’m going to be sick but it’s still normal when I use the bathroom. But I’ve gone three times today because of my tummy cramping. I’m not sick or anything and I didn’t eat anything bad. Is this just a normal thing that happens this late into the pregnancy? I’m assuming it’s just because the digestive system tends to slow down a lot and things get bloated and clogged up. But i dunno. I’m a FTM. Could this be a sign of early labor coming? Or is it just apart of it all?