Round ligament or something else?

Shay

I’ve had round ligament pains before but they’re usually more in my pelvic area. Since yesterday afternoon I’ve been experiencing a dull ache in my lower back and thighs. It gets intense at times and nothing makes it go away (drinking water, walking around, laying on my left side, stretching). I’ve also had diarrhea this morning once. Should I call my doctor or is this just another normal pregnancy pain? I just figured it was because the baby’s growing but my boyfriends worrying, I don’t want to bother my doctors office for something that’s nothing if you know what I mean.