sign of labor?

This is probably a stupid question...

Is rectal pressure a sign of labor? I’m 38 weeks and all day I’ve been feeling like I have to poop but I haven’t been able to go most times. I don’t think it’s constipation bc I’ve still been going at least once a day. I get these pains every hour or two. I also have a lot of pressure around my vagina area but no contractions or anything else.